Teach UFS to respond to pathconf() tests for _POSIX_ACL_EXTENDED and _POSIX_MAC_PRESENT based on available mount flags, if the services are available.
Teach UFS to respond to pathconf() tests for _POSIX_ACL_EXTENDED and
_POSIX_MAC_PRESENT based on available mount flags, if the services are
available.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories

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