Copyright for xfce4-pulseaudio-plugin source package in Yangtze V1.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: xfce4-pulseaudio-plugin
Source: https://git.xfce.org/panel-plugins/xfce4-pulseaudio-plugin/

Files: *
Copyright: 2009-2015, Steve Dodier-Lazaro 
           2014, Eric Koegel 
           2015, Guido Berhoerster 
           2015, Simon Steinbeiss 
           2015-2017, Andrzej 
           2017, Viktor Odintsev 
           2017, Sean Davis 
License: GPL-2.0+

Files: debian/*
Copyright: 2015-2022, Unit 193 
License: GPL-2.0+

License: GPL-2.0+
 This package 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 package 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 program. If not, see 
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".