Copyright for ubuntu-defaults-nl source package in Focal

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: ubuntu-defaults-nl
Upstream-Contact: Redmar 

Files: *
Copyright:
 Portions Copyright (C) 2011 Canonical Ltd.
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.
 .
 The full text of the GPL is distributed as in
 /usr/share/common-licenses/GPL-3 on Debian systems.