[issue9234] argparse: aliases for positional arguments (subparsers)

[R. David Murray]

Changes by R. David Murray <rdmurray at bitdance.com>:


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nosy: +bethard
versions: +Python 3.2 -Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9234>
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