Copyright for gdbm source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: gdbm
Upstream-Contact: bug-gdbm@gnu.org
Source: https://www.gnu.org.ua/software/gdbm/download.html

Files: *
Copyright: 1990-2018 Free Software Foundation, Inc.
License: GPL-3+

Files: tests/*
Copyright: 2011, 2016-2018 Free Software Foundation, Inc.
License: GPL-2+

Files: git2chg.awk
Copyright: 2007, 2009-2014 Sergey Poznyakoff
License: GPL-3+

Files: debian/*
Copyright: 1995      Ray Dassen.
           1996,1997 Mark Eichin
           1996,1997 Christoph Lameter.
           1998-2006 James Troup.
           2016      Dmitry Bogatov 
License: GPL-3+

Files: doc/*
Copyright: 1989-1999, 2007-2011, 2013, 2016-2017 Free Software Foundation, Inc.
License: GFDL-NIV-1.3+

License: GPL-3+
 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.
 .
 You should have received a copy of the GNU General Public License
 along with this program. If not, see .
 .
 On Debian system, copy of GNU Lesser General Public License version 3
 is also located at `/usr/share/common-licenses/GPL-3'

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.
 .
 You should have received a copy of the GNU General Public License
 along with this program. If not, see .
 .
 On Debian system, copy of GNU Lesser General Public License version 2
 is also located at `/usr/share/common-licenses/GPL-2'

License: GFDL-NIV-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.
 A copy of the license is included in the section entitled ``GNU Free
 Documentation License''.