Is this actually a thing (Windows path problems)? I did some reading and many modern articles say that Ruby does the right thing. Were you experiencing problems?

If this is a real thing (and it totally might be), we should move this into a helper method and perhaps create something in `Util` like `magic_path` that expands and prettifies the argument:

```ruby
def magic_path(arg)
  expanded = File.expand_path(arg)
  expanded.gsub!(File::SEPARATOR, File::ALT_SEPARATOR) if File::ALT_SEPARATOR
  expanded
end
```