[Modify] Polish it

websocket-sharp/Ext.cs

@@ -556,10 +556,10 @@ namespace WebSocketSharp
 
     internal static bool IsReserved (this CloseStatusCode code)
     {
-      return code == CloseStatusCode.Undefined ||
+      return code == CloseStatusCode.Undefined
-             code == CloseStatusCode.NoStatus ||
+             || code == CloseStatusCode.NoStatus
-             code == CloseStatusCode.Abnormal ||
+             || code == CloseStatusCode.Abnormal
-             code == CloseStatusCode.TlsHandshakeFailure;
+             || code == CloseStatusCode.TlsHandshakeFailure;
     }
 
     internal static bool IsSupported (this byte opcode)