Changes:
- Fixed the issue where the instance's FQDN was not included in the
cache directories' path when the user sets a custom path to the root
cache directory.
- Added unit tests for the cache directory calculations.
- Updated REUSE.toml to fix compliance failures.
- Added small changes/fixes based on feedback from golangci-lint.
PR: #53
Resolves: #51
Dan Anglin
7e4b8bb05f
