Copyright for golang-github-golang-protobuf-1-5 source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: https://github.com/golang/protobuf
Upstream-Name: protobuf

Files: *
Copyright: 2010-2020 The Go Authors
License: BSD-3-clause

Files: debian/*
Copyright: 2022 Shengjing Zhu 
License: BSD-3-clause
Comment: Debian packaging is licensed under the same terms as upstream

License: BSD-3-clause
 Copyright 2010 The Go Authors.  All rights reserved.
 .
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met:
 .
     * Redistributions of source code must retain the above copyright
 notice, this list of conditions and the following disclaimer.
     * 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.
     * 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.
 .
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 "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,
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 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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