Set whether the date is visible in the clock

    CLI Example:

    .. code-block:: bash

        salt '*' gnome.setClockShowDate <True|False> user=<username>

def setClockShowDate(kvalue, **kwargs):
    '''
    Set whether the date is visible in the clock

    CLI Example:

    .. code-block:: bash

        salt '*' gnome.setClockShowDate <True|False> user=<username>

    '''
    if kvalue is not True and kvalue is not False:
        return False
    _gsession = _GSettings(user=kwargs.get('user'),
                           schema='org.gnome.desktop.interface',
                           key='clock-show-date')
    return _gsession._set(kvalue)