Merge pull request #10131 from pchote/add-join-logging

Add a server log line for player joins.

OpenRA.Game/Server/Server.cs

@@ -372,6 +372,9 @@ namespace OpenRA.Server
 
 				SyncLobbyInfo();
 
+				Log.Write("server", "{0} ({1}) has joined the game.",
+					client.Name, newConn.Socket.RemoteEndPoint);
+
 				if (!LobbyInfo.IsSinglePlayer)
 					SendMessage("{0} has joined the game.".F(client.Name));