[issue47210] './configure --help' causes infinite loop

[ripspin]

ripspin <ripspin-5 at yahoo.com.au> added the comment:

GNU bash, version 4.3.42(1)-release (x86_64-unknown-linux-gnu)
uname -a
Linux xenial64-sda1 4.9.58 #1 SMP PREEMPT Mon Nov 13 15:54:01 GMT 2017 x86_64 x86_64 x86_64 GNU/Linux

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47210>
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