[issue22367] Please add F_OFD_SETLK, etc support to fcntl.lockf

[STINNER Victor]

STINNER Victor added the comment:

> This implements the open_file_descriptor argument and fixes a bug with converting to int when off_t is 64-bit but long is 32-bit.

Please extract the fix into a different patch.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22367>
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