Copyright for grepmail source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Grepmail
Upstream-Contact: David Coppit 
Source: https://github.com/coppit/grepmail

Files: *
Copyright: 1998-2000 Broc Seib  
           2000-2007 David Coppit 
License: GPL-2

Files: inc/Scalar/Util.pm
Copyright: 1997-2005 Graham Barr 
License: GPL-1+ or Artistic
Comment: The original upstream license says: 'This module is licensed under
         the same terms as perl itself'. Perl uses GPL-1+ or Artistic.

FIles: debian/*
Copyright: 1998-2008 Joey Hess 
           2010      Vincent Legout 
           2013      gregor herrmann 
           2016      Gilmar dos Reis Queiroz 
License: GPL-2

License: GPL-2
 This package 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 2 of the License, or
 (at your option) any later version.
 .
 This package is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License
 along with this program. If not, see 
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".

License: GPL-1+ or Artistic
    This program is free software; you can redistribute it and/or modify
    it under the terms of either:
    .
    a) the GNU General Public License as published by the Free Software
       Foundation; either version 1, or (at your option) any later
       version, or
    .
    b) the "Artistic License" which comes with Perl.
    .
 On Debian GNU/Linux systems, the complete text of the GNU General
 Public License version 1 can be found in `/usr/share/common-licenses/GPL-1'
 and the Artistic Licence in `/usr/share/common-licenses/Artistic'.