[issue5613] test_posix.py and test_wait4.py having missing import on win32

[Tim Driscoll]

New submission from Tim Driscoll <tdriscol at gmail.com>:

These are supposed to raise a unittest.SkipTest on win32 but the
unittest import is missing.  The patch just adds the missing import


See patch here:
http://codereview.appspot.com/32074/show

----------
components: Tests
messages: 84607
nosy: brett.cannon, tdriscol
severity: normal
status: open
title: test_posix.py and test_wait4.py having missing import on win32
type: behavior
versions: Python 3.1

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5613>
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