message: remove typescript's null
diff: @@ -8,7 +8,7 @@ import { selectVM, getTemplateForFlavor } from '../../../selectors/vm-template/s
  import { getVMLikePatches } from '../vm-template';
  import { isCPUEqual } from '../../../utils';
  -const getLabelsPatch = (vmLike: VMLikeEntityKind): Patch | null => {
  +const getLabelsPatch = (vmLike: VMLikeEntityKind): Patch => {
  if (!_.has(vmLike.metadata, 'labels')) {
  return {
  op: 'add',
  @@ -19,7 +19,7 @@ const getLabelsPatch = (vmLike: VMLikeEntityKind): Patch | null => {
  return null;
  };
  -const getDomainPatch = (vm: VMKind): Patch | null => {
  +const getDomainPatch = (vm: VMKind): Patch => {
  let patch: Patch = null;
  if (!_.has(vm, 'spec')) {
  patch = {
  