Vendored from the upstream project at `https://github.com/Wilfred/difftastic`.
Before vendoring, this code was modified in `https://github.com/martinabeleda/difftastic/pull/1`
to expose a library interface. That modified code is now vendored directly into this repository.
The original upstream license is preserved in this directory as `LICENSE`.
Parser-specific licenses from the vendored difftastic source tree are preserved under `src/vendored_parsers/`.