[issue42681] Incorrect range checks/documentation in curses

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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pull_requests: +22946
pull_request: https://github.com/python/cpython/pull/24116

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42681>
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