slave/master pty is 4/5 not 5/6

src/etc/etc.mac68k/MAKEDEV

@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-#	$OpenBSD: MAKEDEV,v 1.14 1997/05/14 15:41:14 niklas Exp $
+#	$OpenBSD: MAKEDEV,v 1.15 1997/05/25 18:50:16 millert Exp $
 #
 # Copyright (c) 1990 The Regents of the University of California.
 # All rights reserved.
@@ -245,8 +245,8 @@ pty*)
 		do
 			nam=$name`hex $n`
 			rm -rf {tty,pty}$n
-			mknod tty$nam c 5 `add $offset $n`
-			mknod pty$nam c 6 `add $offset $n`
+			mknod tty$nam c 4 `add $offset $n`
+			mknod pty$nam c 5 `add $offset $n`
 			n=`add $n 1`
 		done
 		umask 77