message: cli: test empty stderr
diff: @@ -13,8 +13,9 @@ describe('@feathersjs/cli', () => {
  });
  it('runs the program with `generate` argument', done => {
  - exec(`node ${path.join(__dirname, '../bin/feathers.js')} generate`, (err, stdout) => {
  + exec(`node ${path.join(__dirname, '../bin/feathers.js')} generate`, (err, stdout, stderr) => {
  assert.equal(err, null);
  + assert.equal(stderr, '');
  assert.equal(stdout, '\n Usage: feathers generate [type]\n\n\n' +
  ' Options:\n\n' +
  ' -V, --version output the version number\n' +
  