github-release 0.5.1

I've filed an issue about the built executable using the name of the directory.
I expect that to be resolved for 0.5.2.
I disagree, that's the form most of our tests take. It returns the correct exit code too so it's enough. Let's do `github-release info --user aktau --repo github-release --tag v#{version}`; I don't think it's unreasonable to believe the tool works on it's own repo given it's the download location too...