def add_checked_summary(message, number_arrays, number_controllers):
    """ Adds ending summary information on how many arrays were checked"""

    message += " [%s array" % number_arrays
    if number_arrays != 1:
        message += "s"
    message += " checked on %s controller" % number_controllers
    if number_controllers == 1:
        message += "]"
    else:
        message += "s]"
    return message