Let mconfig support options specified using the menuconfig directive

again (this code snippet seems to have vanished somewhere between the
original Linux 2.6 kconfig code and here).

extra/config/mconf.c

@@ -308,6 +308,11 @@ static void build_conf(struct menu *menu)
 			return;
 		}
 	} else {
+		if (menu == current_menu) {
+			cprint_tag(":%p", menu);
+			cprint_name("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+			goto conf_childs;
+		}
 		child_count++;
 		val = sym_get_tristate_value(sym);
 		if (sym_is_choice_value(sym) && val == yes) {