/**
* Set the description of the program/command
* @api
* @param string $desc The description.
* You can simply use "\n" to separate lines.
* The white spaces will be trimmed for each line.
* If you need indents of some lines, use heading '_'.
* @return Args $this
*/
public function desc($desc)
{
$this->desc = Helper::replaceHeadingUnderline(array_map("trim", explode("\n", $desc)));
$this->_adjustLen(0, 0, 0, max(array_map("strlen", $this->desc)));
return $this;
}
