Fix for PHP Warning: Invalid argument supplied for foreach() in ..../toctoc_comments/pi1/class.toctoc_comments_pi1.php", 3582, array)

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/toctoc_comments/trunk@85518 735d13b6-9817-0410-8766-e36946ffe9aa