chore: changed xvfb to a service.

diasbruno · diasbruno · commit 2d4f23116822 · 2019-08-27T10:29:15.000-03:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,8 +2,9 @@ language: node_js
 node_js:
   - "8"
 cache: yarn
+service:
+  - xvfb
 before_script:
   - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
 script:
     - make tests-ci
