Copyright for re2 source package in Yangtze V1.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: RE2
Upstream-Contact: The RE2 Authors 
Source: https://github.com/google/re2
Files-Excluded:
 doc/*xkcd*
 re2/perl_groups.cc
 re2/unicode_casefold.cc
 re2/unicode_groups.cc
Comment: Source Repackaged:
 The included XKCD comic (in doc) is under the non-free Creative Commons
 Attribution-NonCommercial 2.5 License. It has been stripped from the Debian
 version of this package.
 .
 The source files automatically generated from included Perl and Python scripts
 have been stripped, as they are generated during building.

Files: *
Copyright: 2002-2020, Google Inc.,
           2014,      Samsung Electronics,
           2010-2016, Stefano Rivera 
License: BSD-3-google

Files: util/utf.h util/rune.cc
Copyright: 2002, Lucent Technologies
License: Lucent
 Permission to use, copy, modify, and distribute this software for any purpose
 without fee is hereby granted, provided that this entire notice is included in
 all copies of any software which is or includes a copy or modification of this
 software and in all copies of the supporting documentation for such software.
 .
 THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
 WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
 REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS
 SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.

Files: debian/*
Copyright: 2010-2020, Stefano Rivera 
License: BSD-3-google

License: BSD-3-google
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 1. Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution.
 3. Neither the name of Google Inc. nor the names of its contributors may be
    used to endorse or promote products derived from this software without
    specific prior written permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.