Copyright for ltsp source package in Bullseye

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: ltsp
Source: https://github.com/ltsp/ltsp

Files: *
Copyright: 2019 Alkis Georgopoulos 
License: GPL-3.0+

License: GPL-3.0+
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License version 3,
 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.
 .
 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 3, can be found in /usr/share/common-licenses/GPL-3.