.travis.yml in pry-singular-0.1.7 vs .travis.yml in pry-singular-0.1.8

@@ -2,6 +2,9 @@
 sudo: false
 language: ruby
 cache: bundler
 rvm:
   - 2.6.3
-before_install: gem install bundler -v 1.17.2
+before_install:
+  - gem install bundler -v 1.17.2
+  - gem install standard
+script: bundle exec standardrb