.travis.yml in radon-0.1.6 vs .travis.yml in radon-0.1.7

@@ -1,7 +1,7 @@
----
-sudo: false
-language: ruby
-cache: bundler
-rvm:
-  - 2.5.0
-before_install: gem install bundler -v 1.16.5
+---
+sudo: false
+language: ruby
+cache: bundler
+rvm:
+  - 2.5.0
+before_install: gem install bundler -v 1.16.5