Copyright for lightdm-webkit-greeter source package in Xenial

Format-Specification: http://svn.debian.org/wsvn/dep/web/deps/dep5.mdwn?op=file&rev=59
Name: LightDM Webkit Greeter
Maintainer: Robert Ancell 
Source: https://launchpad.net/lightdm

Files: *
Copyright: 2010-2011, Robert Ancell 
License: GPL-3+

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.
 .
 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 .
X-Comment: On Debian systems, the complete text of the GNU General
 Public License can be found in `/usr/share/common-licenses/GPL-3’.