(svn r16353) -Fix (r1): invalid read when OTTD savegame contains VEH_INVALID

src/saveload/oldloader_sl.cpp

@@ -1260,7 +1260,7 @@ bool LoadOldVehicle(LoadgameState *ls, int num)
 			uint type = ReadByte(ls);
 			switch (type) {
 				default: return false;
-				case 0x00 /* VEH_INVALID */: v = new (_current_vehicle_id) InvalidVehicle();  break;
+				case 0x00 /* VEH_INVALID  */: v = new (_current_vehicle_id) InvalidVehicle();  break;
 				case 0x25 /* MONORAIL     */:
 				case 0x20 /* VEH_TRAIN    */: v = new (_current_vehicle_id) Train();           break;
 				case 0x21 /* VEH_ROAD     */: v = new (_current_vehicle_id) RoadVehicle();     break;

src/saveload/vehicle_sl.cpp

@@ -698,7 +698,7 @@ void Load_VEHS()
 			case VEH_AIRCRAFT: v = new (index) Aircraft();        break;
 			case VEH_EFFECT:   v = new (index) EffectVehicle();   break;
 			case VEH_DISASTER: v = new (index) DisasterVehicle(); break;
-			case VEH_INVALID:  v = new (index) InvalidVehicle();  break;
+			case VEH_INVALID: /* Savegame shouldn't contain invalid vehicles */
 			default: NOT_REACHED();
 		}