private function publishFindingsToUser(OutputInterface $output, array $wrongfullyChangedFiles)
    {
        if (empty($wrongfullyChangedFiles)) {
            $output->writeln('All good!');
        } else {
            $output->writeln(
                'The following files violate change constraints: ' . PHP_EOL
                . implode(PHP_EOL, $wrongfullyChangedFiles)
            );
        }
    }