Module dependencies need updating

[jamtur01]

Running:

go get -u -v github.com/gobuffalo/buffalo-heroku

And I get:

go: github.com/golang/lint@v0.0.0-20190409202823-959b441ac422: parsing go.mod: unexpected module path "golang.org/x/lint"
go: sourcegraph.com/sourcegraph/go-diff@v0.5.1: parsing go.mod: unexpected module path "github.com/sourcegraph/go-diff"
go: finding google.golang.org/grpc v0.0.0-20170208002647-2a6bf6142e96
go: finding github.com/gonum/blas v0.0.0-20181208220705-f22b278b28ac
go get: error loading module requirements

Looks like the lint and go-diff depdencies on some module need an update. I fixed it short-term with:

go mod edit -replace github.com/golang/lint=golang.org/x/lint@latest
go mod edit -replace sourcegraph.com/sourcegraph/go-diff@v0.5.1=github.com/sourcegraph/go-diff@v0.5.1

Seems like there are issues in the relevant repos too (sourcegraph/go-diff#34 and golang/lint#446).

[camstuart]

Just ran into this myself. Thanks for the work around @jamtur01