Fix phpcs error

extensions/t3o_slack/Classes/Controller/SlackUserController.php

@@ -146,9 +146,9 @@ class SlackUserController extends ActionController
                         $message = ' Error code: ' . $response['error'];
                     }
                         $this->addFlashMessage(
-                        LocalizationUtility::translate('tx_t3oslack.noConnection', $this->extensionName) . $message,
-                        '',
-                        FlashMessage::ERROR
+                            LocalizationUtility::translate('tx_t3oslack.noConnection', $this->extensionName) . $message,
+                            '',
+                            FlashMessage::ERROR
                     );
                     break;
             }