Blank line at the top of the file

[thibaut-pro]

• I'm submitting a ...
  [ ] bug report
  [ ] feature request
  [x] question about the decisions made in the repository
  [ ] question about how to use this project

• Summary
  Thank you for building this library. I've noticed that running the sorter keeps adding a blank line at the top of file. Would it be reasonable to disable that behavior?

• Other information (e.g. detailed explanation, stack traces, related issues, suggestions how to fix, links for us to have context, eg. StackOverflow, personal fork, etc.)