Copyright for barrage source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Barrage
Source: http://lgames.sourceforge.net/index.php?project=Barrage

Files: *
Copyright: 2003-2019, Michael Speck 
License: GPL-2+

Files: debian/*
Copyright: 2004,      Rafal Zawadzki 
           2006-2009, Gonéri Le Bouder 
           2008-2013, Barry deFreese 
           2011,      Paul Wise 
           2015-2021, Markus Koschany 
License: GPL-2+

License: GPL-2+
 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; either version 2 of the License, or (at your option) any later
 version.
 .
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License along with
 this package; if not, write to the Free Software Foundation, Inc., 51 Franklin
 St, Fifth Floor, Boston, MA 02110-1301 USA
 .
 On Debian systems, the complete text of the GNU General Public License version
 2 can be found in `/usr/share/common-licenses/GPL-2'.