Fix comparison-with-callable
Pylint warns about comparing callable. Replace equality with identity
test.
See: https://pagure.io/freeipa/issue/7758
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>