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/chcon.c

@@ -136,7 +136,7 @@ int chcon_main(int argc, char **argv)
 		":\xff--urtl:u--\xff:r--\xff:t--\xff:l--\xff"
 #endif
 		":f--v:v--f";  /* 'verbose' and 'quiet' are exclusive */
-	getopt32(argc, argv, "Rchf:u:r:t:l:v",
+	getopt32(argv, "Rchf:u:r:t:l:v",
 		&user, &role, &type, &range, &reference_file);
 	argv += optind;