Copyright for libpango-perl source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Contact: gtk-perl-list@gnome.org
Source: https://metacpan.org/release/Pango
Upstream-Name: Pango

Files: *
Copyright: 2003-2014 by the gtk2-perl team
License: LGPL-2.1+

Files: debian/*
Copyright: 2008-2009, Ryan Niebur 
 2009, Nathan Handler 
 2011, Alessandro Ghedini 
 2013-2017, intrigeri 
License: LGPL-2.1+

License: LGPL-2.1+
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later
 version.
 .
 On Debian systems, the complete text of version 2.1 of the GNU Library
 General Public License can be found in `/usr/share/common-licenses/LGPL-2.1'