Switching Travis CI builds to Ubuntu Bionic Beaver

According to the [documentation](https://docs.travis-ci.com/user/reference/trusty/#container-based-infrastructure), `sudo: false` is no longed needed since Trusty.
doctrine · Jan 8, 2020 · 8e88457 · 8e88457
1 parent 947f4e9
commit 8e88457
Showing 1 changed file with 4 additions and 5 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -1,11 +1,10 @@
 language: php
-sudo: false
-dist: xenial
+dist: bionic
 
 cache:
-    directories:
-        - vendor
-        - $HOME/.composer/cache
+  directories:
+    - vendor
+    - $HOME/.composer/cache
 
 before_install:
   - phpenv config-rm xdebug.ini || true