[issue41687] sendfile implementation is not compatible with Solaris

[Jakub Kulik]

Change by Jakub Kulik <kulikjak at gmail.com>:


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pull_requests: +21209
pull_request: https://github.com/python/cpython/pull/22128

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41687>
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