Copyright for libutempter source package in Nile V2.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libutempter
Upstream-Contact: Dmitry V. Levin 
Source: http://ftp.altlinux.org/pub/people/ldv/utempter/

Files: *
Copyright: 2001-2020,  Dmitry V. Levin 
License: LGPL-2.1

Files: utempter.3
Copyright: 2009, Ed Schouten 
           2010, Dmitry V. Levin 
License: LGPL-2.1

Files: debian/*
Copyright: 2009-2011, Fathi Boudra 
                2015, Felix Geyer 
           2019-2020, Christian Göttsche 
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 the file `/usr/share/common-licenses/LGPL-2.1'.