Copyright for libalgorithm-diff-xs-perl source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Algorithm-Diff-XS
Upstream-Contact: Audrey Tang 
Source: https://metacpan.org/release/Algorithm-Diff-XS

Files: *
Copyright: 2008, Audrey Tang 
 2003, Joe Schaefer 
License: Artistic or GPL-1+

Files: ppport.h
Copyright: 2004-2009, Marcus Holland-Moritz 
 2001, Paul Marquess  (Version 2.x)
 1999, Kenneth Albanowski  (Version 1.x)
License: Artistic or GPL-1+

Files: inc/Module/*
Copyright: 2002-2009, Adam Kennedy 
 2002-2009, Audrey Tang 
 2002-2009, Brian Ingerson 
License: Artistic or GPL-1+

Files: debian/*
Copyright: 2009, Jonathan Yu 
 2011, Steve McIntyre 
 2011-2019, gregor herrmann 
License: Artistic or GPL-1+

License: Artistic
 This program is free software; you can redistribute it and/or modify
 it under the terms of the Artistic License, which comes with Perl.
 .
 On Debian systems, the complete text of the Artistic License can be
 found in `/usr/share/common-licenses/Artistic'.

License: GPL-1+
 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 1, or (at your option)
 any later version.
 .
 On Debian systems, the complete text of version 1 of the GNU General
 Public License can be found in `/usr/share/common-licenses/GPL-1'.