Copyright for libstring-diff-perl source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: String::Diff
Upstream-Contact: https://github.com/yappo/p5-String-Diff/issues
Source: https://metacpan.org/release/String-Diff
 https://github.com/yappo/p5-String-Diff
 https://github.com/yappo/p5-String-Diff.git

Files: *
Copyright: Kazuhiro Osawa 
License-Grant:
 This library is free software; you can redistribute it and/or modify it
 under the same terms as Perl itself.
License: Artistic or GPL-1+
Comment:
 Perl 5 is licensed under either the Artistic license or the GNU General
 Public License, version 1 or later.
 .
 Source lacks explicit copyright statement, but upstream bug RT#48063
 refers to http://blog.yappo.jp/debian.txt containing the following:
 .
 All of my modules available at https://metacpan.org/author/MIYAGAWA with the
 statement "AUTHOR: Kazuhiro Osawa" are, unless otherwise noted,
 Copyright (c) Kazuhiro Osawa.

Files: debian/*
Copyright: 2013,2015, 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: Artistic
License-Reference: /usr/share/common-licenses/Artistic

License: GPL-1+
License-Reference: /usr/share/common-licenses/GPL-1

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