Fixed logging message

def adjust_exposure_to_setpoint(camera, setpoint):

    """Adjust the camera's exposure time until the maximum pixel value is <setpoint>."""

    logging.info("Adjusting shutter speed to hit setpoint {}".format(setpoint), end="")

    print("Adjusting shutter speed to hit setpoint {}".format(setpoint), end="")

    for i in range(3):

        print(".", end="")

        camera.shutter_speed = int(

            camera.shutter_speed * setpoint / np.max(rgb_image(camera))

        )

        time.sleep(1)

    logging.info("done")

    print("done")

def auto_expose_and_freeze_settings(camera):