[issue10424] better error message from argparse when positionals missing

[Michele Orrù]

Michele Orrù <maker.py at gmail.com> added the comment:

Unittest added.

----------
Added file: http://bugs.python.org/file19729/issue10424.patch

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10424>
_______________________________________