HBAC: Enforce coding style ipa_hbac_rule_info_recv()
By convention, the output variables are prefixed with a underscore.
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>