item_list class attribute should be an array

Hello,

Inside the admin form definition, an item_list() is called with a class attribute passed as a string instead of an array:

 theme('item_list', array(
      'items' => array(
        t('Add <em>[node:title]</em> to your favorites'),
        t('Add this [node:type] to your favorites'),
        t('Vote for this proposal ([node:flag-vote-count] people have already done so)'),
      ),
      'attributes' => array('class' => 'token-examples'),
    )) .

The 'class' key inside the attributes should rather be an array so any preprocessing of theme_item_list() can safely add classes to all list items if needed. Otherwise, you get errors or you need to do string handling. Maybe worth fixing real quick in your next iteration.