Copyright for python-boltons source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: boltons
Upstream-Contact: Mahmoud Hashemi 
Source: https://github.com/mahmoud/boltons

Files: *
Copyright: 2013-2020 Mahmoud Hashemi 
License: BSD-3-clause

Files: debian/*
Copyright: 2015-2019 Sophie Brun 
           2016-2019 Hugo Lefeuvre 
License: BSD-3-clause

License: BSD-3-clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met:
 .
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
 .
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
 .
    * The names of the contributors may not be used to endorse or
      promote products derived from this software without specific
      prior written permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.