fixed linting (added new line)

Author: mxschmitt

src/HttpClient.class.php

@@ -143,4 +143,3 @@ private function getError($code = 0)
         }
     }
 }
-

src/Instance.class.php

@@ -429,4 +429,4 @@ public function getPlayedTracks()
     {
         return $this->request('/bot/i/'.$this->uuid.'/recent', 'POST', '');
     }
-}
+}