Copyright for libestr source package in Huanghe V3.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libestr
Upstream-Contact: Rainer Gerhards , Adiscon GmbH.
Source: https://github.com/rsyslog/libestr

Files: *
Copyright: 2010, Rainer Gerhards and Adiscon GmbH.
  2010-2011, Rainer Gerhards and Adiscon GmbH.
License: LGPL-2.1+

Files: debian/*
Copyright: 2022, Florian Ernst 
License: LGPL-2.1+

Files: debian/tests/*
Copyright: 2012, Canonical Ltd. and Vibhav Pant 
  2022, Florian Ernst 
License: LGPL-2.1+

License: LGPL-2.1+
 This program 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 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 Lesser
 General Public License for more details.
 .
 You should have received a copy of the GNU Lesser General Public License
 along with this program; 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'.