Fix for people setting object name to nothing so that you can still click in chat to find out who and where.

indra/newview/llviewermessage.cpp

@@ -3024,6 +3024,10 @@ void process_chat_from_simulator(LLMessageSystem *msg, void **user_data)
 	LLViewerObject*	chatter;
 
 	msg->getString("ChatData", "FromName", from_name);
+    if (from_name.empty())
+    {
+        from_name = "(no name)";
+    }
 	chat.mFromName = from_name;
 	
 	msg->getUUID("ChatData", "SourceID", from_id);