MaT1g3R <peijun...@protonmail.com> added the comment:

I tried to include line breaks for listing options for a positional argument.

The default metavar for that is something like {opt1, opt2, op3},
however I wanted it to display the options on separate lines.

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32867>
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