Copyright for libnih source package in Bullseye

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: https://launchpad.net/libnih/+download
Upstream-Contact: Scott James Remnant 
Upstream-Name: libnih

Files: *
Copyright: 2009 Canonical Ltd.
           2009 Scott James Remnant 
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 version 2, as
 published by the Free Software Foundation.
 .
 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.
 .
 On Debian systems, the complete text of the GNU General Public
 License can be found in ‘/usr/share/common-licenses/GPL-2’.