new copyright notice

new copyright notice

SCCS-vsn: usr.bin/paste/paste.c 5.5
SCCS-vsn: usr.bin/printenv/printenv.c 5.4
SCCS-vsn: usr.bin/printf/printf.c 5.9
SCCS-vsn: usr.bin/quota/quota.c 5.11
SCCS-vsn: usr.bin/rdist/defs.h 5.8
SCCS-vsn: usr.bin/rdist/docmd.c 5.6
SCCS-vsn: usr.bin/renice/renice.c 5.3
SCCS-vsn: usr.bin/rdist/expand.c 5.6
SCCS-vsn: usr.bin/rdist/gram.y 5.6
SCCS-vsn: usr.bin/rdist/lookup.c 5.5
SCCS-vsn: usr.bin/rdist/main.c 5.5
SCCS-vsn: usr.bin/rdist/pathnames.h 5.3
SCCS-vsn: usr.bin/rdist/server.c 5.12
SCCS-vsn: usr.bin/rlogin/des_rw.c 5.4
SCCS-vsn: usr.bin/rlogin/kcmd.c 5.5
SCCS-vsn: usr.bin/rlogin/krcmd.c 1.4
SCCS-vsn: usr.bin/ruptime/ruptime.c 5.7