Classes/Task/BatchResizeTask.php
public function syslog($message, $severity = \TYPO3\CMS\Core\Messaging\FlashMessage::OK)
    {
        switch ($severity) {
            case \TYPO3\CMS\Core\Messaging\FlashMessage::NOTICE:
                $severity = GeneralUtility::SYSLOG_SEVERITY_NOTICE;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::INFO:
                $severity = GeneralUtility::SYSLOG_SEVERITY_INFO;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::OK:
                $severity = GeneralUtility::SYSLOG_SEVERITY_INFO;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::WARNING:
                $severity = GeneralUtility::SYSLOG_SEVERITY_WARNING;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::ERROR:
                $severity = GeneralUtility::SYSLOG_SEVERITY_ERROR;
                break;
        }

        GeneralUtility::sysLog($message, 'image_autoresize', $severity);
    }
public function syslog($message, $severity = \TYPO3\CMS\Core\Messaging\FlashMessage::OK)
    {
        switch ($severity) {
            case \TYPO3\CMS\Core\Messaging\FlashMessage::NOTICE:
                $severity = GeneralUtility::SYSLOG_SEVERITY_NOTICE;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::INFO:
                $severity = GeneralUtility::SYSLOG_SEVERITY_INFO;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::OK:
                $severity = GeneralUtility::SYSLOG_SEVERITY_INFO;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::WARNING:
                $severity = GeneralUtility::SYSLOG_SEVERITY_WARNING;
                break;
            case \TYPO3\CMS\Core\Messaging\FlashMessage::ERROR:
                $severity = GeneralUtility::SYSLOG_SEVERITY_ERROR;
                break;
        }

        GeneralUtility::sysLog($message, 'image_autoresize', $severity);
    }
Creates an entry in syslog.

@param string $message
@param integer $severity
@return void