[issue23908] Check path arguments of os functions for null character

[Roundup Robot]

Roundup Robot added the comment:

New changeset 30099abdb3a4 by Serhiy Storchaka in branch '2.7':
Issue #23908: os functions, open() and the io.FileIO constructor now reject
https://hg.python.org/cpython/rev/30099abdb3a4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23908>
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