It's needed for this quine to work. Upstream has it. See discussion in
https://github.com/alangpierce/golang-quine/pull/1#issuecomment-226917669.

Quines are fun

Change-Id: I3dffaf514ac2a04046fb54b6179cd1677053c5c7
Reviewed-On: https://dmitri.shuralyov.com/scratch/...$changes/2

To make sure the authors are properly attributed

Change-Id: I11417eb524f5f6671104c783db2248f9fdb13677
Reviewed-On: https://dmitri.shuralyov.com/scratch/...$changes/1

Make the BSD 3-Clause license easier to see by adding a LICENSE file
to the repository. Use the same format as https://golang.org/LICENSE.

These are tiny packages for testing purposes only.

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.