Update .travis.yml

rastating · rastating · commit 9a4eda1f11e2 · 2018-04-14T14:23:34.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,6 +5,7 @@ rvm:
   - 2.5.1
 before_install:
   - "echo 'gem: --no-ri --no-rdoc' > ~/.gemrc"
+  - "gem install bundler"
 script: bundle exec rspec
 branches:
   except:
