use new form of suser()

use new form of suser()

SCCS-vsn: sys/netiso/iso_snpac.c 7.3
SCCS-vsn: sys/ufs/ffs/ffs_vfsops.c 7.12
SCCS-vsn: sys/ufs/ffs/ufs_vfsops.c 7.12
SCCS-vsn: sys/ufs/lfs/lfs_vfsops.c 7.12
SCCS-vsn: sys/ufs/ufs/ufs_vfsops.c 7.12
SCCS-vsn: sys/kern/vfs_syscalls.c 7.6
SCCS-vsn: sys/ufs/ffs/ffs_vnops.c 7.6
SCCS-vsn: sys/ufs/ffs/ufs_vnops.c 7.6
SCCS-vsn: sys/ufs/lfs/lfs_vnops.c 7.6
SCCS-vsn: sys/ufs/ufs/ufs_vnops.c 7.6
SCCS-vsn: sys/kern/vfs_vnops.c 7.3
SCCS-vsn: sys/vm/vm_swap.c 7.4
SCCS-vsn: sys/kern/kern_xxx.c 7.5
SCCS-vsn: sys/kern/kern_time.c 7.8
SCCS-vsn: sys/kern/kern_resource.c 7.4
SCCS-vsn: sys/kern/kern_prot.c 7.5
SCCS-vsn: sys/kern/kern_acct.c 7.4
SCCS-vsn: sys/kern/tty.c 7.15
SCCS-vsn: sys/kern/kern_ktrace.c 1.2