[issue45110] argparse repeats itself when formatting help metavars

[paul j3]

paul j3 <ajipanca at gmail.com> added the comment:

https://bugs.python.org/issue42980 argparse: GNU-style help formatter

https://bugs.python.org/issue33389 argparse redundant help string

https://bugs.python.org/issue29626
Issue with spacing in argparse module while using help

https://bugs.python.org/issue27303
[argparse] Unify options in help output

https://stackoverflow.com/questions/23936145/python-argparse-help-message-disable-metavar-for-short-options

https://stackoverflow.com/questions/18275023/dont-show-long-options-twice-in-print-help-from-argparse

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<https://bugs.python.org/issue45110>
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