Copyright for ukui-desktop-environment source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Comment:
 This package is a meta-package.

Files: debian/*
Copyright: 2011-2014, Stefano Karapetsas 
           2014, Mike Gabriel 
           2016, Tianjin KYLIN Information Technology Co.,Ltd.
License: GPL-2+

License: GPL-2+
 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.
 .
 On Debian sysyems, the complete test of the GNU General Public
 License version 2 can be found in "/usr/share/common-licenses/GPL-2".