[issue19238] Misleading explanation of fill and align in format_spec

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


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nosy: +terry.reedy
versions: +Python 2.7, Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19238>
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