[issue45216] Remove redundant information from difflib docstrings

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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title: Remove redundand information from difflib docstrings -> Remove redundant information from difflib docstrings

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45216>
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