update copyright to 2021

64 files changed, 64 insertions, 0 deletions

diff --git a/src/egg-array-float.c b/src/egg-array-float.c
index 5e83073..0c4d15c 100644
--- a/src/egg-array-float.c
+++ b/src/egg-array-float.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-array-float.h b/src/egg-array-float.h
index e37e1d0..1c304d0 100644
--- a/src/egg-array-float.h
+++ b/src/egg-array-float.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-color.c b/src/egg-color.c
index 2dcbca8..f238ee3 100644
--- a/src/egg-color.c
+++ b/src/egg-color.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-color.h b/src/egg-color.h
index 71d0752..d129d44 100644
--- a/src/egg-color.h
+++ b/src/egg-color.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-console-kit.c b/src/egg-console-kit.c
index 3c3c977..617b1df 100644
--- a/src/egg-console-kit.c
+++ b/src/egg-console-kit.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-console-kit.h b/src/egg-console-kit.h
index 6664131..0074d0c 100644
--- a/src/egg-console-kit.h
+++ b/src/egg-console-kit.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-discrete.c b/src/egg-discrete.c
index 603217d..192e46b 100644
--- a/src/egg-discrete.c
+++ b/src/egg-discrete.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-discrete.h b/src/egg-discrete.h
index 9192a59..f9647d6 100644
--- a/src/egg-discrete.h
+++ b/src/egg-discrete.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-idletime.c b/src/egg-idletime.c
index c3eb899..b5a6c26 100644
--- a/src/egg-idletime.c
+++ b/src/egg-idletime.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-idletime.h b/src/egg-idletime.h
index 19b8ece..c5ac04e 100644
--- a/src/egg-idletime.h
+++ b/src/egg-idletime.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-precision.c b/src/egg-precision.c
index bc4e07b..58723ed 100644
--- a/src/egg-precision.c
+++ b/src/egg-precision.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-precision.h b/src/egg-precision.h
index aae8291..0ff51ba 100644
--- a/src/egg-precision.h
+++ b/src/egg-precision.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-test.c b/src/egg-test.c
index 996d017..1ca4acb 100644
--- a/src/egg-test.c
+++ b/src/egg-test.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/egg-test.h b/src/egg-test.h
index 1b05092..3488c0e 100644
--- a/src/egg-test.h
+++ b/src/egg-test.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-backlight-helper.c b/src/gpm-backlight-helper.c
index 6039def..da0eb89 100644
--- a/src/gpm-backlight-helper.c
+++ b/src/gpm-backlight-helper.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2010 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-backlight.c b/src/gpm-backlight.c
index d71a31f..fd69465 100644
--- a/src/gpm-backlight.c
+++ b/src/gpm-backlight.c
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005-2009 Richard Hughes <[email protected]>
  * Copyright (C) 2005 William Jon McCann <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-backlight.h b/src/gpm-backlight.h
index 1060587..17cb192 100644
--- a/src/gpm-backlight.h
+++ b/src/gpm-backlight.h
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
  * Copyright (C) 2004-2005 William Jon McCann <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-brightness.c b/src/gpm-brightness.c
index 1ef8da4..d4fcc80 100644
--- a/src/gpm-brightness.c
+++ b/src/gpm-brightness.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008-2010 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-brightness.h b/src/gpm-brightness.h
index 918793d..4efe22d 100644
--- a/src/gpm-brightness.h
+++ b/src/gpm-brightness.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-button.c b/src/gpm-button.c
index 23656bf..15d7625 100644
--- a/src/gpm-button.c
+++ b/src/gpm-button.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-button.h b/src/gpm-button.h
index 8992007..943b0cb 100644
--- a/src/gpm-button.h
+++ b/src/gpm-button.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-common.c b/src/gpm-common.c
index 5a9d964..aca6ac5 100644
--- a/src/gpm-common.c
+++ b/src/gpm-common.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-common.h b/src/gpm-common.h
index b2b0b1a..e4a3a2b 100644
--- a/src/gpm-common.h
+++ b/src/gpm-common.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-control.c b/src/gpm-control.c
index 38f476f..ce08ac3 100644
--- a/src/gpm-control.c
+++ b/src/gpm-control.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-control.h b/src/gpm-control.h
index d7d9f9a..11f10f7 100644
--- a/src/gpm-control.h
+++ b/src/gpm-control.h
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-dpms.c b/src/gpm-dpms.c
index 9c310dd..81a336f 100644
--- a/src/gpm-dpms.c
+++ b/src/gpm-dpms.c
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2006-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-dpms.h b/src/gpm-dpms.h
index b6218fc..d816408 100644
--- a/src/gpm-dpms.h
+++ b/src/gpm-dpms.h
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2004-2005 William Jon McCann <[email protected]>
  * Copyright (C) 2006-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-engine.c b/src/gpm-engine.c
index feab0dd..84be273 100644
--- a/src/gpm-engine.c
+++ b/src/gpm-engine.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-engine.h b/src/gpm-engine.h
index 8dbefbc..9b41494 100644
--- a/src/gpm-engine.h
+++ b/src/gpm-engine.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-graph-widget.c b/src/gpm-graph-widget.c
index fba1412..379afca 100644
--- a/src/gpm-graph-widget.c
+++ b/src/gpm-graph-widget.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-graph-widget.h b/src/gpm-graph-widget.h
index d9c127f..eb53ab6 100644
--- a/src/gpm-graph-widget.h
+++ b/src/gpm-graph-widget.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-icon-names.h b/src/gpm-icon-names.h
index 004e70e..d878675 100644
--- a/src/gpm-icon-names.h
+++ b/src/gpm-icon-names.h
@@ -3,6 +3,7 @@
  * Copyright (C) 2002 Jorn Baayen
  * Copyright (C) 2003,2004 Colin Walters <[email protected]>
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-idle.c b/src/gpm-idle.c
index c058ffb..c4739da 100644
--- a/src/gpm-idle.c
+++ b/src/gpm-idle.c
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-idle.h b/src/gpm-idle.h
index e186838..ba19682 100644
--- a/src/gpm-idle.h
+++ b/src/gpm-idle.h
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-kbd-backlight.c b/src/gpm-kbd-backlight.c
index c75b9ab..2757f6e 100644
--- a/src/gpm-kbd-backlight.c
+++ b/src/gpm-kbd-backlight.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2010 Alex Launi <alex launi canonical com>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-kbd-backlight.h b/src/gpm-kbd-backlight.h
index 78975b5..496bdd0 100644
--- a/src/gpm-kbd-backlight.h
+++ b/src/gpm-kbd-backlight.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2010 Alex Launi <alex launi canonical com>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-load.c b/src/gpm-load.c
index 8496c32..0729768 100644
--- a/src/gpm-load.c
+++ b/src/gpm-load.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-load.h b/src/gpm-load.h
index fcce544..ccd85ee 100644
--- a/src/gpm-load.h
+++ b/src/gpm-load.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-main.c b/src/gpm-main.c
index dcea806..4212f32 100644
--- a/src/gpm-main.c
+++ b/src/gpm-main.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Taken in part from:
  *  - lshal   (C) 2003 David Zeuthen, <[email protected]>
diff --git a/src/gpm-manager.c b/src/gpm-manager.c
index d241721..c16b62d 100644
--- a/src/gpm-manager.c
+++ b/src/gpm-manager.c
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-manager.h b/src/gpm-manager.h
index 2a86fa5..9800b84 100644
--- a/src/gpm-manager.h
+++ b/src/gpm-manager.h
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-networkmanager.c b/src/gpm-networkmanager.c
index e882b54..97c3210 100644
--- a/src/gpm-networkmanager.c
+++ b/src/gpm-networkmanager.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-networkmanager.h b/src/gpm-networkmanager.h
index e7eaa4c..526b8e8 100644
--- a/src/gpm-networkmanager.h
+++ b/src/gpm-networkmanager.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-phone.c b/src/gpm-phone.c
index 76f0912..0cd38f5 100644
--- a/src/gpm-phone.c
+++ b/src/gpm-phone.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-phone.h b/src/gpm-phone.h
index b540539..52680a6 100644
--- a/src/gpm-phone.h
+++ b/src/gpm-phone.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-point-obj.c b/src/gpm-point-obj.c
index cdc1ce0..31277ae 100644
--- a/src/gpm-point-obj.c
+++ b/src/gpm-point-obj.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/src/gpm-point-obj.h b/src/gpm-point-obj.h
index a37e2a6..a26ea65 100644
--- a/src/gpm-point-obj.h
+++ b/src/gpm-point-obj.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/src/gpm-prefs-core.c b/src/gpm-prefs-core.c
index 4375a6a..29ccfd0 100644
--- a/src/gpm-prefs-core.c
+++ b/src/gpm-prefs-core.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2005 Jaap Haitsma <[email protected]>
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-prefs-core.h b/src/gpm-prefs-core.h
index 6810d4d..fb267ac 100644
--- a/src/gpm-prefs-core.h
+++ b/src/gpm-prefs-core.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-prefs.c b/src/gpm-prefs.c
index 4d39aa1..8a1e26e 100644
--- a/src/gpm-prefs.c
+++ b/src/gpm-prefs.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2005 Jaap Haitsma <[email protected]>
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-screensaver.c b/src/gpm-screensaver.c
index b59a381..f1dc562 100644
--- a/src/gpm-screensaver.c
+++ b/src/gpm-screensaver.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-screensaver.h b/src/gpm-screensaver.h
index 9f81aec..2090836 100644
--- a/src/gpm-screensaver.h
+++ b/src/gpm-screensaver.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2005-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-self-test.c b/src/gpm-self-test.c
index 898323e..b626a85 100644
--- a/src/gpm-self-test.c
+++ b/src/gpm-self-test.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007-2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-session.c b/src/gpm-session.c
index 48cc64a..bc577bb 100644
--- a/src/gpm-session.c
+++ b/src/gpm-session.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-session.h b/src/gpm-session.h
index ad45e46..8cea3f6 100644
--- a/src/gpm-session.h
+++ b/src/gpm-session.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-statistics.c b/src/gpm-statistics.c
index 490b49a..897e6ec 100644
--- a/src/gpm-statistics.c
+++ b/src/gpm-statistics.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-tray-icon.c b/src/gpm-tray-icon.c
index 48fdd3d..013929f 100644
--- a/src/gpm-tray-icon.c
+++ b/src/gpm-tray-icon.c
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2009 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-tray-icon.h b/src/gpm-tray-icon.h
index 03bc943..b31a9a8 100644
--- a/src/gpm-tray-icon.h
+++ b/src/gpm-tray-icon.h
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2005 William Jon McCann <[email protected]>
  * Copyright (C) 2005-2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-upower.c b/src/gpm-upower.c
index 9048630..6cf24c6 100644
--- a/src/gpm-upower.c
+++ b/src/gpm-upower.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2008 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gpm-upower.h b/src/gpm-upower.h
index a60d906..21eb139 100644
--- a/src/gpm-upower.h
+++ b/src/gpm-upower.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2007 Richard Hughes <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Licensed under the GNU General Public License Version 2
  *
diff --git a/src/gsd-media-keys-window.c b/src/gsd-media-keys-window.c
index f4a82f6..5877299 100644
--- a/src/gsd-media-keys-window.c
+++ b/src/gsd-media-keys-window.c
@@ -1,6 +1,7 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
  *
  * Copyright (C) 2006-2007 William Jon McCann <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  *
  * This program is free software; you can redistribute it and/or
diff --git a/src/gsd-media-keys-window.h b/src/gsd-media-keys-window.h
index 0a3fd01..def58ae 100644
--- a/src/gsd-media-keys-window.h
+++ b/src/gsd-media-keys-window.h
@@ -1,6 +1,7 @@
 /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8; tab-width: 8 -*-
  *
  * Copyright (C) 2006 William Jon McCann <[email protected]>
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/src/msd-osd-window.c b/src/msd-osd-window.c
index 38554ae..b8a9ede 100644
--- a/src/msd-osd-window.c
+++ b/src/msd-osd-window.c
@@ -4,6 +4,7 @@
  *
  * Copyright (C) 2006-2007 William Jon McCann <[email protected]>
  * Copyright (C) 2009 Novell, Inc
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Authors:
  *   William Jon McCann <[email protected]>
diff --git a/src/msd-osd-window.h b/src/msd-osd-window.h
index ac3325a..23651d2 100644
--- a/src/msd-osd-window.h
+++ b/src/msd-osd-window.h
@@ -4,6 +4,7 @@
  *
  * Copyright (C) 2006 William Jon McCann <[email protected]>
  * Copyright (C) 2009 Novell, Inc
+ * Copyright (C) 2012-2021 MATE Developers
  *
  * Authors:
  *   William Jon McCann <[email protected]>