[issue39390] shutil.copytree - 3.8 changed argument types of the ignore callback

[Serhiy Storchaka]

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


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nosy: +giampaolo.rodola

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39390>
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