Fix: Indentation

Author: localheinz

.travis.yml

@@ -8,10 +8,10 @@ php:
   - 5.6
   - 7
   - hhvm
- 
+
 matrix:
-    allow_failures:
-        - php: 7
+  allow_failures:
+    - php: 7
 
 install:
   - sudo apt-get -y install pypy python-sphinx graphviz