Copyright for postgrey source package in Oracular

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: postgrey
Upstream-Contact: David Schweikert 
Source: https://postgrey.schweikert.ch/
Comment: This Debian package was prepared by
 Adrian von Bidder  in July 2004,
 then the package was adopted by Antonio Radici 
 in September 2009.

Files: *
Copyright: 2004-2022 David Schweikert
           2004-2006 ETH Zürich
           2007 Open Systems AG, Switzerland
License: GPL-2+

Files: contrib/postgreyreport
Copyright: 2004 tbaker@bakerfl.org
License: GPL-2+

Files: debian/*
Copyright: 2004-2009 Adrian von Bidder 
           2009-2017 Antonio Radici 
           2022 Jordi Mallach 
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; either version 2 of the License, or
 (at your option) any later version.
 .
 On Debian systems, the complete text of the GNU General
 Public License can be found in `/usr/share/common-licenses/GPL-2'.