marshalindent, and spaces not tabs, spaces look better

pkg/frontend/openshiftcluster_putorpatch.go

@@ -236,7 +236,7 @@ func (f *frontend) _putOrPatchOpenShiftCluster(ctx context.Context, log *logrus.
 	doc.OpenShiftCluster.Properties.ClusterProfile.PullSecret = ""
 	doc.OpenShiftCluster.Properties.ServicePrincipalProfile.ClientSecret = ""
 
-	b, err := json.MarshalIndent(converter.ToExternal(doc.OpenShiftCluster), "", "\t")
+	b, err := json.MarshalIndent(converter.ToExternal(doc.OpenShiftCluster), "", "    ")
 	if err != nil {
 		return nil, err
 	}

pkg/frontend/openshiftversions_list.go

@@ -36,7 +36,7 @@ func (f *frontend) listInstallVersions(w http.ResponseWriter, r *http.Request) {
 
 	converter := f.apis[vars["api-version"]].OpenShiftVersionConverter
 
-	b, err := json.Marshal(converter.ToExternalList(([]*api.OpenShiftVersion)(versions)))
+	b, err := json.MarshalIndent(converter.ToExternalList(([]*api.OpenShiftVersion)(versions)), "", "    ")
 	reply(log, w, nil, b, err)
 }