Copyright for nano source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: nano
Source: https://nano-editor.org/dist/
Comment:
 This package was debianized by Jordi Mallach  on
 Wed,  8 Dec 1999 19:39:12 +0100.
 .
 GNU nano main authors are Chris Allegreta ,
 David Lawrence Ramsey  and
 Benno Schulenberg .
 
Files: *
Copyright: © 1999-2011, 2013-2016 Free Software Foundation, Inc.
           © 2014-2016 The contributors to GNU nano
License: GPL-3+

Files: doc/*.1 doc/*.5 doc/*.texi
Copyright: © 1999-2011, 2013-2016 Free Software Foundation, Inc.
License: GFDL-NIV+ or GPL-3+

Files: debian/*
Copyright: Jordi Mallach 
License: GPL-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, 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, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 02110-1301, USA.
 .
 On Debian systems, the complete text of the GNU General Public License
 can be found in /usr/share/common-licenses/GPL-3.

License: GFDL-NIV+
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.2
 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".
 .
 On Debian systems, the complete text of the GNU Free Documentation License
 can be found in /usr/share/common-licenses/GFDL-1.2.