def shutdown(self, exitcode=0, exitmsg=None):
        self.shutdown_log_info()
        msg = 'The salt master is shutdown. '
        if exitmsg is not None:
            exitmsg = msg + exitmsg
        else:
            exitmsg = msg.strip()
        super(Master, self).shutdown(exitcode, exitmsg)
scrolls string at given row
dataset/ETHPy150Open saltstack/salt/salt/cli/daemons.py/Master.shutdown--crossover with--dataset/ETHPy150Open rm-hull/pcd8544/src/lcd.py/smooth_hscroll