lookup converted to new form

lookup converted to new form

SCCS-vsn: sys/kern/vfs_lookup.c 7.35
SCCS-vsn: sys/kern/vfs_subr.c 7.66
SCCS-vsn: sys/kern/vfs_vnops.c 7.35
SCCS-vsn: sys/kern/vfs_syscalls.c 7.76
SCCS-vsn: sys/kern/uipc_usrreq.c 7.29
SCCS-vsn: sys/kern/vfs_cache.c 7.9
SCCS-vsn: sys/ufs/ffs/ufs_lookup.c 7.37
SCCS-vsn: sys/ufs/ufs/ufs_lookup.c 7.37
SCCS-vsn: sys/ufs/ffs/ufs_vnops.c 7.72
SCCS-vsn: sys/ufs/ufs/ufs_vnops.c 7.72
SCCS-vsn: sys/ufs/ffs/ufs_extern.h 7.3
SCCS-vsn: sys/ufs/ufs/ufs_extern.h 7.3
SCCS-vsn: sys/nfs/nfsnode.h 7.17
SCCS-vsn: sys/nfs/nfs_subs.c 7.46
SCCS-vsn: sys/nfs/nfs_serv.c 7.44
SCCS-vsn: sys/nfs/nfs_node.c 7.37
SCCS-vsn: sys/nfs/nfs_vnops.c 7.66