[docs] [issue29348] this comment 'iff' should be 'if'?

[INADA Naoki]

INADA Naoki added the comment:

"iff" is short form of "if and only if".

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nosy: +inada.naoki
resolution:  -> not a bug
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29348>
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