/**
  * Store the data from a @@topic annotation in our topics list.
  */
 protected function processTopicTag($tag)
 {
     $lines = explode("\n", $this->getTagContents($tag));
     $topic = array_shift($lines);
     $description = static::removeLineBreaks(implode("\n", $lines));
     $this->commandInfo->setTopic($topic, $description);
 }