HBAC: Document ipa_hbac_rule_info_next()'s behaviour
Let's add a comment on ipa_hbac_rule_info_send() in order to have
cleaner why ret is set to EINVAL when ipa_hbac_rule_info_next() returns
EOK.
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>