Updates a domain administrator in the cluster.
void updateDomainAdministrator(DomainAdministratorVO domainAdministrator) throws SUPAdminException;
If successful, returns silently. If unsuccessful, returns SUPAdminException.
//Update a domain administrator
davo = new DomainAdministratorVO();
davo.setLoginName("<domain administrator login name>");
davo.setCompanyName("Sybase");
supCluster.updateDomainAdministrator(davo);