Ensure Bundler is available on Travis CI

Sometimes builds fail due to Bundler not being installed ...
cucumber · Jan 7, 2019 · 9b54e86 · 9b54e86
1 parent 4b5d207
commit 9b54e86
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,8 @@
 sudo: false
 language: ruby
 script: bundle exec rake test
+before_install:
+  - gem install bundler -v '< 2'
 bundler_args: --without development debug
 
 jobs: