setting for disabling 'runway too short' warning

src/order_cmd.cpp

@@ -1794,6 +1794,7 @@ void CheckOrders(const Vehicle *v)
 				} else if (v->type == VEH_AIRCRAFT &&
 							(AircraftVehInfo(v->engine_type)->subtype & AIR_FAST) &&
 							(st->airport.GetFTA()->flags & AirportFTAClass::SHORT_STRIP) &&
+							_settings_client.gui.runway_too_short_warn &&
 							_settings_game.vehicle.plane_crashes != 0 &&
 							!_cheats.no_jetcrash.value &&
 							message == INVALID_STRING_ID) {