update copyright

Author: alteholz

debian/copyright

@@ -29,7 +29,7 @@ License: GPL-2+
 
 Files: cups.h
 Copyright: 1997-2006 by Easy Software Products.
-License: GPL-2 with CUPS exceptions
+License: GPL-2-with-CUPS-exceptions
  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
  the Free Software Foundation, version 2 of the License.
@@ -117,6 +117,7 @@ Copyright: 2003-2005 Chris Lawrence <lawrencc@debian.org>
            2007-2009 Michael Koch <konqueror@gmx.de>
            2008-2011 Luca Capello <luca@pca.it>
            2011-2013 Didier Raboud <odyx@debian.org>
+           2024      Thorsten Alteholz <debian@alteholz.de>
 License: GPL-2+
 
 License: GPL-2+