[issue38584] argparse: Specifying a whitespace-only help message to a positional arg triggers an IndexError when displaying --help

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan <tir.karthi at gmail.com>:


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nosy: +paul.j3, rhettinger

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38584>
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