Copyright for ruby-gsl source package in Jessie

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: rb-gsl
Upstream-Contact: https://github.com/david-macmahon/rb-gsl/issues
                  Yoshiki Tsunesada 
                  David MacMahon 
Source: https://github.com/david-macmahon/rb-gsl
Comment: The upstream tarball has been repacked to remove the
  rdoc/ directory containing files under the (non-free) GNU
  Documentation license with invariant sections.
  See debian/README.source for details.

Files: *
Copyright: 2001-2006 Yoshiki Tsunesada 
License: GPL-2

Files: setup.rb
Copyright: 2000-2005 Minero Aoki
License: LGPL-2.1

Files: ext/fcmp.c
Copyright: 2002 Gert Van den Eynde
License: GPL-2+

Files: ext/histogram_oper.c
Copyright: 2000  Simone Piccardi
License: GPL-2+

Files: ext/histogram_find.c ext/oper_complex_source.c
Copyright: 1996-2000 Brian Gough
License: GPL-2+

Files: debian/*
Copyright: 2010 Deepak Tripathi 
 2013 Cédric Boutillier 
License: GPL-2

License: GPL-2
 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; version 2 dated June, 1991.
 .
 On Debian systems, the complete text of version 2 of the GNU General
 Public License can be found in '/usr/share/common-licenses/GPL-2'.

License: GPL-2+
 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; version 2 dated June, 1991, or (at
 your option) any later version.
 .
 On Debian systems, the complete text of version 2 of the GNU General
 Public License can be found in '/usr/share/common-licenses/GPL-2'.

License: LGPL-2.1
 This program is free software; you can redistribute it and/or modify it
 under the terms of the GNU Lesser General Public License as published by the
 Free Software Foundation; version 2.1 of the License.
 .
 On Debian systems, the complete text of version 2.1 of the GNU Lesser
 Public License can be found in `/usr/share/common-licenses/LGPL-2.1'.