[docs] [issue37908] Add an example of ArgumentParser.exit()

[miss-islington]

miss-islington <mariatta.wijaya+miss-islington at gmail.com> added the comment:


New changeset 6dc3e61c511d3e13ce4eac86c8b6abdff58e3617 by Miss Islington (bot) in branch '3.8':
bpo-37908: Add an example of ArgumentParser.exit() (GH-15455)
https://github.com/python/cpython/commit/6dc3e61c511d3e13ce4eac86c8b6abdff58e3617


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nosy: +miss-islington

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