Added world name to player logged in message.

src/main/java/net/minecraft/server/NetLoginHandler.java

@@ -84,7 +84,7 @@ public class NetLoginHandler extends NetHandler {
         if (entityplayer != null) {
             this.server.serverConfigurationManager.b(entityplayer);
             // entityplayer.a((World) this.server.a(entityplayer.dimension)); // CraftBukkit - set by Entity
-            a.info(this.b() + " logged in with entity id " + entityplayer.id + " at (" + entityplayer.locX + ", " + entityplayer.locY + ", " + entityplayer.locZ + ")");
+            a.info(this.b() + " logged in with entity id " + entityplayer.id + " at ([ "+ entityplayer.world.worldData.name + "] " + entityplayer.locX + ", " + entityplayer.locY + ", " + entityplayer.locZ + ")");
             WorldServer worldserver = (WorldServer) entityplayer.world; // CraftBukkit
             ChunkCoordinates chunkcoordinates = worldserver.getSpawn();
             NetServerHandler netserverhandler = new NetServerHandler(this.server, this.networkManager, entityplayer);