[issue9348] Calling argparse's add_argument with the wrong number of metavars causes delayed error message

[Catherine Devlin]

Catherine Devlin <fredv8vibwc at liquidid.net> added the comment:

Thanks for the correction, Steven.  This unit test matches your description.  Use it instead of my earlier submission.

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Added file: http://bugs.python.org/file18390/wrong_metavars_test_corrected.patch

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