Copyright for python-stestr source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: stestr
Upstrean-Contact: Matthew Treinish 
Source: https://github.com/mtreinish/stestr

Files: *
Copyright: (c) 2013, Matthew Treinish 
           (c) 2013, IBM Corp.
           (c) 2015, SUSE Linux GmbH
           (c) 2013-2015, Hewlett-Packard Development Company, L.P.
           (c) 2014, Samsung Electronics
           (c) 2001-2010, Twisted Matrix Laboratories
           (c) 2015, NEC Corporation
License: Apache-2

Files: debian/*
Copyright: (c) 2017, Thomas Goirand 
License: Apache-2

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.