Copyright for umockdev source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Contact: Martin Pitt 
Source: https://launchpad.net/umockdev/+download

Files: *
Copyright:
 Copyright (C) 2012-2013 Canonical Ltd.
 Copyright (C) 2017 Martin Pitt
License: LGPL-2+
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 .
 On Debian systems, the complete text of the GNU Lesser General
 Public License can be found in `/usr/share/common-licenses/LGPL-2'.