Copyright for ifenslave source package in Jammy

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Comment:
 This package was debianized by Guus Sliepen 
 on Wed, 13 Jun 2001 09:31:56 +0200.

Files: *
Copyright: 2001-2013 Guus Sliepen 
           2012-2013 Dmitry Smirnov 
License: GPL-3+

License: GPL-3+
 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 3 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.
 .
 The complete text of the GNU General Public License version 3
 can be found in "/usr/share/common-licenses/GPL-3".