Bump hashdiff from 0.3.9 to 0.4.0 (#1862)
Bump hashdiff from 0.3.9 to 0.4.0 (#1862)

Bumps [hashdiff](https://github.com/liufengyun/hashdiff) from 0.3.9 to 0.4.0.
- [Release notes](https://github.com/liufengyun/hashdiff/releases)
- [Changelog](https://github.com/liufengyun/hashdiff/blob/master/changelog.md)
- [Commits](https://github.com/liufengyun/hashdiff/compare/v0.3.9...v0.4.0)
octobox/octobox,octobox/octobox,octobox/octobox,octobox/octobox