Gush\Command\PullRequest\PullRequestMergeCommand::getPrAuthors PHP Method

    private function getPrAuthors(array $commits, $authorFallback = 'unknown')
    {
        if (!$commits) {
            return $authorFallback;
        }
        $authors = [];
        foreach ($commits as $commit) {
            $authors[] = $commit['user'];
        }
        return implode(', ', array_unique($authors, SORT_STRING));
    }