update /var/named/etc/localtime when /etc/localtime changes

src/etc/rc

@@ -1,4 +1,4 @@
-#	$OpenBSD: rc,v 1.82 1998/07/13 23:24:57 deraadt Exp $
+#	$OpenBSD: rc,v 1.83 1998/07/24 18:01:25 millert Exp $
 
 # System startup script run by init on autoboot
 # or after single-user.
@@ -107,6 +107,10 @@ if [ "X${named_flags}" != X"NO" ]; then
 		if [ ! -c "${named_chroot}/dev/null" ]; then
 			( cd /dev ; pax -rw -pe null ${named_chroot}/dev )
 		fi
+		if [ -f /etc/localtime -a -d "${named_chroot}/etc" ]; then
+			cmp -s /etc/localtime "${named_chroot}/etc/localtime" \
+			|| cp -p /etc/localtime "${named_chroot}/etc/localtime"
+		fi
 		named_flags="-t ${named_chroot} ${named_flags}"
 	fi
 	echo 'starting named';		named $named_flags