[issue18174] Make regrtest with --huntrleaks check for fd leaks

[Mark Lawrence]

Mark Lawrence added the comment:

Just flagging this up as testing is rather important.

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components: +Tests
nosy: +BreamoreBoy
versions: +Python 2.7, Python 3.4, Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18174>
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