Copyright for mathomatic source package in Bullseye

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: mathomatic
Upstream-Contact: George Gesslein II 
Source: http://www.mathomatic.org
Comment: This package was debianized by David Moreno Garza on
 Mon, 21 Jun 2004 18:59:41 -0500.

Files: *
Copyright: 1987-2012 George Gesslein II 
License: LGPL-2.1+

Files: doc/*
Copyright: 1987-2012 George Gesslein II 
License: GFDL-1.3

Files: debian/*
Copyright: 2004-2006 David Moreno Garza 
           2006-2011 Sandro Tosi 
           2011-2012 George Gesslein II 
           2018-2020 tony mancill 
License: LGPL-2.1+

License: LGPL-2.1+
 This library 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; either
 version 2.1 of the License, or (at your option) any later version.
 . 
 This library 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
 Lesser General Public License for more details. 
 . 
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 . 
 On Debian systems, the full text of the GNU Lesser General Public
 License version 2.1 can be found in `/usr/share/common-licenses/LGPL-2.1'.
 
License: GFDL-1.3
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
 version published by the Free Software Foundation; with no Invariant
 Sections, no Front-Cover Texts, and no Back-Cover Texts.
 .  
 On Debian systems, the full text of the GNU Free Documentation License
 version 1.3 can be found in `/usr/share/common-licenses/GFDL-1.3'.