[Modify] Polish it

websocket-sharp/WebSocket.cs

@@ -953,21 +953,22 @@ namespace WebSocketSharp
           return false;
         }
 
-        _readyState = WebSocketState.Connecting;
         try {
-          if (doHandshake ()) {
+          _readyState = WebSocketState.Connecting;
+          if (!doHandshake ())
+            return false;
+
           _readyState = WebSocketState.Open;
           return true;
         }
-        }
         catch (Exception ex) {
           _logger.Fatal (ex.ToString ());
           fatal ("An exception has occurred while connecting.", ex);
-        }
 
           return false;
         }
       }
+    }
 
     // As client
     private string createExtensions ()