[issue17248] test_posix chown -1, 0 tests fail if user has group root

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Fixed.

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assignee:  -> serhiy.storchaka
resolution:  -> fixed
stage: needs patch -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17248>
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