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.

init/halt.c

@@ -34,7 +34,7 @@ RB_AUTOBOOT
 	for(which=0;delay[which]!=*bb_applet_name;which++);
 
 	/* Parse and handle arguments */
-	flags = bb_getopt_ulflags(argc, argv, "d:nf", &delay);
+	flags = getopt32(argc, argv, "d:nf", &delay);
 	if (flags&1) sleep(atoi(delay));
 	if (!(flags&2)) sync();