parameters: convert Decimal.precision to int
Explicitly convert Decimal.precision to int for unary `-` to make
sure int is passed to it.
Fixes pylint warning.
https://pagure.io/freeipa/issue/6874
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>