[issue42226] imghdr.what is missing docstring, has a logic error, and is overly complex

[Jeremy Howard]

Change by Jeremy Howard <j at zz.lc>:


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keywords: +patch
pull_requests: +21988
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/23069

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42226>
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