Copyright for boxer-data source package in Stretch

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: boxer-data
Upstream-Contact: Boxer developers 
Source: https://anonscm.debian.org/cgit/boxer/boxer-data.git
 git://anonscm.debian.org/boxer/boxer-data

Files: *
Copyright: 2014-2016, Jonas Smedegaard 
License-Grant:
 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, or (at your option) any
 later version.
License: GPL-3+

License: GPL-3+
License-Rerefence: /usr/share/common-licenses/GPL-3