DataSift\Storyplayer\Cli\E4xx_NoSystemUnderTestSpecified::__construct PHP Method

    public function __construct()
    {
        $msg = "You need to use -s to specify which system to test." . PHP_EOL . PHP_EOL . "Use 'storyplayer --list-systems' to see the list of known systems under test.";
        parent::__construct(400, $msg, $msg);
    }