E_NOTICE warning in getList processor

[BobRay]

Line 153 of core\components\discuss\hooks\board\post\getlist.php

  $threadArray['excerpt'] =  
     substr($threadArray['excerpt'],0,$modx->getOption('discuss.post_excerpt_length', null, 500)).'...';

should be"

 $threadArray['excerpt'] = substr($threadArray['excerpt'],0, (float)
      $modx->getOption('discuss.post_excerpt_length', null, 500)).'...';

Substr() wants argument 3 to be a long (float is necessary for 32-bit platforms).