Copyright for double-conversion source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: double-conversion
Upstream-Contact: Florian Loitsch 
Source: http://double-conversion.googlecode.com

Files: *
Copyright: 2006-2008, 2010-2012 The V8 project authors
License: BSD-3-clause

Files: debian/*
Copyright: 2012-2013 Sébastien Villemot 
License: BSD-3-clause

License: BSD-3-clause
 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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 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,
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