b6476f5 servrole: takes_params must be a tuple

Authored and Committed by cheimes 3 years ago
    servrole: takes_params must be a tuple
    
    The definition of servrole.takes_params was missing a comma.
    
    Related: https://pagure.io/freeipa/issue/8290
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>