def usage(err=''):
    """  Prints the Usage() statement for the program    """
    m = '%s\n' %err
    m += 'Default usage is to list Cases closed for the 30 days\n'
    m += '\n Example:\n'
    m += '    closedcases -n 90   \n'     
    m += ' \n'
#    m += ' closedcases -n 60 -s blast5 \n'
    return m