[issue9115] test_site: support for systems without unsetenv

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

Fixed in r87691 (py3k), r87693 (3.1) and r87694 (2.7), thanks!

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resolution:  -> fixed
stage: patch review -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9115>
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