To make sure the authors are properly attributed
Change-Id: I11417eb524f5f6671104c783db2248f9fdb13677
Reviewed-On: https://dmitri.shuralyov.com/scratch/...$changes/1
This is the first Go package that doesn't map 1:1 to a repository.
It's a subdirectory inside a repository. Support for that is not
implemented yet. This package will be used to help with that.