Copyright for openstack-pkg-tools source package in Kinetic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: openstack-pkg-tools
Source: git://anonscm.debian.org/openstack/openstack-pkg-tools.git

Files: *
Copyright: 2012-2016, Thomas Goirand 
           2012, Roland Mas 
           2017-2019, Michal Arbet 
           2016-2020, Ondřej Nový 
License: Apache-2
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 .
    http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 .
 On Debian-based systems the full text of the Apache version 2.0 license
 can be found in `/usr/share/common-licenses/Apache-2.0'.