[issue20912] [zipfile.py]: Make zip directory attributes more friendly for MS-Windows

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka at gmail.com>:


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nosy: +serhiy.storchaka
stage:  -> test needed
versions: +Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20912>
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