test: translation of text added comma (#510)

Author: bcoe

translate/test/quickstart.test.js

@@ -27,6 +27,6 @@ const projectId = process.env.GCLOUD_PROJECT;
 describe('quickstart sample tests', () => {
   it('should translate a string', async () => {
     const stdout = execSync(`node quickstart ${projectId}`, {cwd});
-    assert.match(stdout, new RegExp('Translation: Привет, мир!'));
+    assert.include(stdout, 'Translation: Привет');
   });
 });