Adjust travis config

diff --git a/.travis.yml b/.travis.yml
index c81a2933de4f995006e345455165fd546fc9942b..09c9a859f59a6518c9ec73c89108aea596620a28 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,13 +3,11 @@ sudo: false
 addons:
   apt:
     packages:
 addons:
   apt:
     packages:

-    - diff
+    - diffutils

     - xsltproc
 php:
   - 7
   - 5.6
     - xsltproc
 php:
   - 7
   - 5.6

-  - 5.5
-  - 5.4

 script:
   - cd tests
   - phpunit .
 script:
   - cd tests
   - phpunit .