add NFS_ARGSVERSION to nfs_args structure

prettiness police; From: Charles Hannum <mycroft@NetBSD.ORG>

bug fix for OSF/1 servers

minor nits from Rick Macklem

update for version 3 from Rick Macklem

usage on error (from cgd)

do not assume that root file handle can always be obtained
by UDP (from mycroft)

better error message on failure (from mycroft)

Rick Macklem notes that NFS should get MNT_RDONLY and MNT_UPDATE
add MNT_FORCE so that MNT_UPDATE can be forced

Jan-Simon Pendry's and my new mount code

4.4BSD snapshot (revision 8.1); add 1993 to copyright

cleanup from Rick Macklem

we allow -g as well

we do allow -F flags

err doesn't need newlines, thanks, Craig!

let mount(2) do existence and type checking

Welcome to the wonderful world of ANSI C! (Not to mention prototypes
and general cleanliness...)

1,$s/exit()/exit(0)/

add set_rpc_maxgrouplist() to control maximum number of groups used

add -P option to request use of reserved port

from Rick Macklem