don't pass argc in getopt32, it's superfluous

(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes
   text    data     bss     dec     hex filename
 773469    1058   11092  785619   bfcd3 busybox_old
 772644    1058   11092  784794   bf99a busybox_unstripped

selinux/getsebool.c

@@ -16,7 +16,7 @@ int getsebool_main(int argc, char **argv)
 	unsigned opt;
 
 	selinux_or_die();
-	opt = getopt32(argc, argv, "a");
+	opt = getopt32(argv, "a");
 
 	if (opt) { /* -a */
 		if (argc > 2)