Attempt to solve Issue 935: Script Chat Show The Owner?

indra/newview/llviewermessage.cpp

@@ -3583,6 +3583,8 @@ void process_chat_from_simulator(LLMessageSystem *msg, void **user_data)
 	LLViewerObject*	chatter;
 
 	msg->getString("ChatData", "FromName", from_name);
+	// make sure that we don't have an empty or all-whitespace name
+	LLStringUtil::trim(from_name);
 	if (from_name.empty())
 	{
 		from_name = LLTrans::getString("Unnamed");