[issue9938] Add optional keyword argument exit_on_error to argparse.ArgumentParser

[Stéphane Wirtel]

Stéphane Wirtel <stephane at wirtel.be> added the comment:

Thank you for your PR and for your time, I have merged the PR into master.

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nosy: +matrixise
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue9938>
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