[issue12713] argparse: allow abbreviation of sub commands by users

[Mark Lawrence]

Mark Lawrence added the comment:

The latest patch seems okay to me.  I've successfully applied it and ran the test suite and everything passed.  Could someone please take a look with a view to getting this committed, thanks.

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nosy: +BreamoreBoy

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12713>
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