Copyright for courier-authlib source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: courier-authlib
Upstream-Contact: Sam Varshavchik 
Source: http://www.courier-mta.org/

Files: *
Copyright: 2004 - 2016 Double Precision, Inc.
License: GPL-3+OpenSSL-exception

Files: authcustom.h
 authldap.h
Copyright: 1999 Luc Saillard 
License: GPL-2+
Comment:
 Sam Varshavchik said:
 > There's been quite a few changes since Luc's original version. I
 > believe what makes sense is to preserve the revision history, but
 > simply reference the main COPYING file.

Files: debian/*
Copyright: 2004-2015 Stefan Hornburg (Racke) 
	   2015      Ondřej Surý 
	   2017      Markus Wanner 
License: GPL-3+OpenSSL-exception

License: GPL-3+OpenSSL-exception
 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 3 of the License, or (at
 your option) any later version.
 .
 This program 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.
 .
 A copy of the GNU General Public License is available as
 /usr/share/common-licenses/GPL-3 in the Debian GNU/Linux
 distribution.
 .
 Additionally, compiling, linking, and/or using the OpenSSL toolkit in
 conjunction with this software is allowed.

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.
 .
 This program 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.
 .
 A copy of the GNU General Public License is available as
 /usr/share/common-licenses/GPL-2 in the Debian GNU/Linux
 distribution.