[issue13394] Patch to increase aifc lib test coverage with couple of minor fixes

[Ezio Melotti]

Changes by Ezio Melotti <ezio.melotti at gmail.com>:


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nosy: +r.david.murray
stage:  -> patch review
versions: +Python 3.2, Python 3.3 -Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13394>
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