Make sure to clear the FD on end

Author: rauchg

lib/socket.io/client.js

@@ -65,6 +65,7 @@ Client.prototype._onConnect = function(req, res){
   this.connection.addListener('end', function(){
     self._onClose();
     self.connection.end();
+    self.connection.destroy();
   });
 
   if (req){