Please review the attached patch for the following bug: * *Bugzilla Bug #979559* <https://bugzilla.redhat.com/show_bug.cgi?id=979559>-Parameter --ca_domain_url should be optional This bug addresses the problem of attempting to configure an instance using a version of pki-silent which contains the new code with expanded parameters while using an old template from a previous version of pki-silent which did not contain these parameters. Tested by installing and successfully configuring a CA using the newly patched code with an old template which excluded the "-ca_domain_url" parameter.