Fix bug where conditional is always true, and handling nil/empty array

lib/miq_automation_engine/engine/miq_ae_method_service/miq_ae_service_methods.rb

@@ -144,7 +144,7 @@ def self.create_provision_request(*args)
       # Need to add the username into the array of params
       # TODO: This code should pass a real username, similar to how the web-service
       #      passes the name of the user that logged into the web-service.
-      args.insert(1, User.lookup_by_userid("admin")) if args.kind_of?(Array)
+      args << User.lookup_by_userid("admin")
       MiqAeServiceModelBase.wrap_results(MiqProvisionVirtWorkflow.from_ws(*args))
     end