Fix Travis CI

Author: alexislefebvre

.travis.yml

@@ -26,7 +26,7 @@ matrix:
       env: SYMFONY_VERSION="^4.1"
     - php: 7.2
       env: EXTRA_PACKAGES="doctrine/phpcr-bundle:^1.3 brianium/paratest:^1.0 doctrine/phpcr-odm:^1.3"
-  -   php: 7.3
+    - php: 7.3
       env: SYMFONY_VERSION="^4.1"
   allow_failures:
     - php: 7.2