/testconfigname:[config name The name of the pre-existing test management configuration to associate with the published run. ...

  /testconfigname:[config name]     The name of the pre-existing test
                                    management configuration to associate with
                                    the published run. 
                                    If not specified using a name then 
                                    optionally use /testconfigid to specify
                                    the configuration by id. If you use 
                                    neither then no configuration will 
                                    be associated with the published run.
                                    This switch is only used with /publish 
                                    to publish to a test management server.