Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
to add more V* constants, and the variables changed by this patch were often
being assigned to mode_t variables, which is 16 bit.

Approved by: rwatson (mentor)

Use 'manual page' instead of 'man page' for consistency.

Approved by: re (hrs)

ispell sweep of share/man/man9/*.

Update function definitions and required include files to reflect
the current state of the system.

Approved by: alfred

mdoc(7) police: markup nits.

o Introduce a man page for vaccess_acl_posix1e(), based on the existing
vaccess(). This man page leaves something to be desired, as it doesn't
currently document the POSIX.1e evaluation algorithm, which will in
the future be incorporated, or cross-referenced.

Obtained from: TrustedBSD Project