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)
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