[issue37752] Redundant Py_CHARMASK called in normalizestring(codecs.c)

[hai shi]

hai shi <shihai1991 at 126.com> added the comment:

Good catch ;), try to fix it, thanks.

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nosy: +shihai1991

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37752>
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