getopt_ulflags -> getopt32.

It is impossible to formulate sane ABI based on
size of ulong because it can be 32-bit or 64-bit.
Basically it means that you cannot portably use
more that 32 option chars in one call anyway...
Make it explicit.

util-linux/swaponoff.c

@@ -66,7 +66,7 @@ int swap_on_off_main(int argc, char **argv)
 	if (argc == 1)
 		bb_show_usage();
 
-	ret = bb_getopt_ulflags(argc, argv, "a");
+	ret = getopt32(argc, argv, "a");
 	if (ret & DO_ALL)
 		return do_em_all();