DYNDNS: SSSD does not batch DDNS update requests
SSSD includes a 'send' command in between each record modification
and does not batch DDNS update requests. This is problematic in
complex AD environments because those requests may not be processed
by the same server.
Now forward zone update is done in two steps - one per
protocol family. If dyndns_update_per_family is set
to false, update is performed in single step.
Resolves:
https://pagure.io/SSSD/sssd/issue/3829
Reviewed-by: Pavel Březina <pbrezina@redhat.com>