Copyright for rust-git-absorb source package in Jammy

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: git-absorb
Upstream-Contact: Stephen Jung 
Source: https://github.com/tummychow/git-absorb

Files: *
Copyright: 2018—2020 Stephen Jung 
License: BSD-3-Clause

Files: debian/*
Copyright:
 2020 Debian Rust Maintainers 
 2020 Andrej Shadura 
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:
 .
 1. Redistributions of source code must retain the above copyright notice, this
 list of conditions and the following disclaimer.
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 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.
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 3. Neither the name of the copyright holder 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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 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
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 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
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