language: ruby
rvm:
  - 2.1.10
  - 2.2.5
  - 2.3.1

git:
  submodules: false

before_install:
  - gem install bundler

script:
  - bundle exec rake test

language: ruby
rvm:
  - 2.1.10
  - 2.2.5
  - 2.3.1

git:
  submodules: false

before_install:
  - gem install bundler --version=1.17.3

script:
  - bundle exec rake test

Update Travis config to install Bundler 1.17.3 (the most recent non-2.x version at time of writing) because Bundler 2.x is not compatible with Ruby < 2.3
Update Travis config to install Bundler 1.17.3 (the most recent non-2.x version at time of writing) because Bundler 2.x is not compatible with Ruby < 2.3
