/**
* Sets the description for the command on the plugin instance
*
* @param Phergie_Plugin_Abstract $plugin plugin instance
* @param string $command from onCommand method
* @param string $description command description
*
* @return void
*/
public function setCommandDescription(Phergie_Plugin_Abstract $plugin, $command, array $description)
{
$this->registry[strtolower($plugin->getName())]['cmd'][$command] = $description;
}