```ruby
describe command('heroku version') do
  its(:stdout) { should match(/^heroku-toolbelt\/\d/) }
  its(:stdout) { should match(/^heroku-cli\/\d/) }
end
```

Fix regexes to appease the rubocop
user
```ruby
describe command('heroku version') do
  its(:stdout) { should match(%r{^heroku-toolbelt\/\d}) }
  its(:stdout) { should match(%r{^heroku-cli\/\d}) }
end
```
assistant