I agree about variable names, but it is hard to make two lines above more readable with all the markup in it.
```ruby
response['files'].sort.each { |f_n, x| body << "* [#{f_n}](#{x['raw_url']})\n" }
body << "\n```\n$ brew doctor\n#{doctor}\n```"
body << "\n```\n$ brew --config\n#{config}\n```"
open_issue f, $gh_user, $gh_repo, body
```