Fix strange unified diff https://github.com/golang/go/issues/60379
What's Changed
- Import upstream package [create-pull-request] by @github-actions in https://github.com/aymanbagabas/go-udiff/pull/7
Full Changelog: https://github.com/aymanbagabas/go-udiff/compare/v0.1.2...v0.1.3