[issue40423] Optimization: use close_range(2) if available

[Kyle Evans]

Change by Kyle Evans <kevans at FreeBSD.org>:


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pull_requests: +21624
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/22651

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40423>
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