Copyright for golang-github-pingcap-check source package in Bionic

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

Files: *
Copyright: 2014 Dropbox, Inc.
           2010-2013 Gustavo Niemeyer 
License: BSD-3-clause
Comment: On 26 May 2015, source was relicensed from BSD-2-clause.

Files: benchmark.go benchmark_test.go
Copyright: 2012 The Go Authors
License: BSD-3-clause

Files: debian/*
Copyright: 2017 Michael Lustfield 
License: BSD-3-clause
Comment: Debian packaging is licensed under the same terms as upstream

License: BSD-3-clause
 All rights reserved.
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 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 the University 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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