Set the minimum number of days between password changes. See man passwd.

    CLI Example:

    .. code-block:: bash

        salt '*' shadow.set_mindays username 7

def set_mindays(name, mindays):
    '''
    Set the minimum number of days between password changes. See man passwd.

    CLI Example:

    .. code-block:: bash

        salt '*' shadow.set_mindays username 7
    '''
    pre_info = info(name)
    if mindays == pre_info['min']:
        return True
    cmd = 'passwd -n {0} {1}'.format(mindays, name)
    __salt__['cmd.run'](cmd, python_shell=False)
    post_info = info(name)
    if post_info['min'] != pre_info['min']:
        return post_info['min'] == mindays
    return False