Fix cli test after pull from master

Author: rlamana

test/cli.test.js

@@ -29,7 +29,7 @@ describe('CLI', () => {
 
   it('--bonjour', (done) => {
     runDevServer('--bonjour')
-      .then((output) => {
+      .onClose.then((output) => {
         expect(output.code).toEqual(0);
         expect(output.stdout.indexOf('Bonjour') >= 0).toBe(true);
         done();