message: Fix issue with default false overwrite option
diff: @@ -58,6 +58,7 @@ export async function setup(yargs: Yargs): Promise<Object> {
  overwrite: {
  describe: 'Overwrite the configuration file if it exists',
  type: 'boolean',
  + default: undefined,
  },
  sitegroup: {
  describe: 'Name of sitegroup to configure',
  