LDAP: Log autofs rfc2307 config changes only with enabled responder
    
    grep -nE "0x0040" /var/log/sssd/sssd_example.com.log
    361:(Tue Aug 16 13:04:04 2016) [sssd[be[example.com]]]
      [ldap_get_autofs_options] (0x0040): Your configuration uses the autofs
      provider with schema set to rfc2307 and default attribute mappings.
      The default map has changed in this release, please make sure
      the configuration matches the server attributes.
    
    Reviewed-by: Petr Čech <pcech@redhat.com>