formatting

contribs/parking/src/main/java/org/matsim/contrib/parking/parkingsearch/manager/FacilityBasedParkingManager.java

@@ -213,7 +213,7 @@ protected boolean parkVehicleAtLink(Id<Vehicle> vehicleId, Id<Link> linkId, doub
 				return true;
 			} else {
 				throw new RuntimeException("no parking reservation found for vehicle " + vehicleId.toString()
-					+ "arrival on link " + linkId + " with parking restriction");
+					+ " arrival on link " + linkId + " with parking restriction");
 			}
 		}
 	}