[Modify] Polish it

websocket-sharp/Server/WebSocketServiceManager.cs

@@ -315,11 +315,11 @@ namespace WebSocketSharp.Server
       string path, out WebSocketServiceHost host
     )
     {
-      lock (_sync) {
       path = HttpUtility.UrlDecode (path).TrimEndSlash ();
+
+      lock (_sync)
         return _hosts.TryGetValue (path, out host);
     }
-    }
 
     internal bool Remove (string path)
     {