Fix coordinate bug (operator precedence)

SpigotCore_Main/src/de/steamwar/entity/REntityServer.java

@@ -224,6 +224,6 @@ public class REntityServer implements Listener {
     }
 
     private long chunkToId(int x, int z) {
-        return (long) x << 32 + z;
+        return ((long) x << 32) + z;
     }
 }