[issue46222] posixmodule sendfile FreeBSD's constants update

[David CARLIER]

New submission from David CARLIER <devnexen at gmail.com>:

Adding SF_NOCACHE and little note for SF_MNOWAIT.

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components: FreeBSD
messages: 409465
nosy: devnexen, koobs
priority: normal
pull_requests: 28542
severity: normal
status: open
title: posixmodule sendfile FreeBSD's constants update
versions: Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue46222>
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