Copyright for asterisk-espeak source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Asterisk-eSpeak
Upstream-Contact: https://github.com/zaf/Asterisk-eSpeak/issues/
Source: https://github.com/zaf/Asterisk-eSpeak/downloads
 git://github.com/zaf/Asterisk-eSpeak

Files: *
Copyright: 2009-2016, Lefteris Zafiris 
License-Grant:
 This program is free software, distributed under the terms of
 the GNU General Public License Version 2.
License: GPL-2

Files: debian/*
Copyright: 2009-2010,2012-2013,2015-2017, Jonas Smedegaard 
License-Grant:
 This file 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 3, or (at your option) any
 later version.
License: GPL-3+

Files: debian/patches/1001_add_LDFLAGS.patch
Copyright: 2015, Jonas Smedegaard 
License-Grant:
 License: GPL-2+
License: GPL-2+

License: GPL-2
License-Reference: /usr/share/common-licenses/GPL-2

License: GPL-2+
License-Reference: /usr/share/common-licenses/GPL-2

License: GPL-3+
License-Reference: /usr/share/common-licenses/GPL-3