sudo: false
language: ruby
cache: bundler
rvm:
  - 2.1.10
  - 2.2.9
  - 2.3.6
  - 2.5.0
  - ruby-head
before_install:
  - gem update --system
  - gem install bundler --no-document
matrix:
  include:
    # Run Danger only once, on 2.4.3
    - rvm: 2.4.3
      before_script: bundle exec danger

sudo: false
language: ruby
cache: bundler
rvm:
  - 2.1.10
  - 2.2.9
  - 2.3.6
  - 2.4.3
  - 2.5.0
  - ruby-head
before_install:
  - gem update --system
  - gem install bundler --no-document
matrix:
  include:
    # Run Danger only once, on 2.4.3
    - rvm: 2.4.3
      script: bundle exec danger

Improve readability of Travis config
Improve readability of Travis config
