Copyright for golang-github-cyphar-filepath-securejoin source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: filepath-securejoin
Source: https://github.com/cyphar/filepath-securejoin
Files-Excluded:
  vendor
  Godeps/_workspace

Files: *
Copyright:
    2014-2015 Docker Inc & Go Authors. All rights reserved.
    2017      SUSE LLC. All rights reserved.
License: BSD-3-Clause~Google

Files: debian/*
Copyright: 2018 Dmitry Smirnov 
License: Apache-2.0

License: Apache-2.0
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 .
 http://www.apache.org/licenses/LICENSE-2.0
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 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 .
 The complete text of the Apache version 2.0 license
 can be found in "/usr/share/common-licenses/Apache-2.0".

License: BSD-3-Clause~Google
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met:
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   * 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
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