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

coreutils/chown.c

@@ -69,7 +69,7 @@ int chown_main(int argc, char **argv)
 	chown_fptr chown_func;
 
 	opt_complementary = "-2";
-	getopt32(argc, argv, OPT_STR);
+	getopt32(argv, OPT_STR);
 	argv += optind;
 
 	/* This matches coreutils behavior (almost - see below) */