Problem statement

Hi,

Looks like there is an indirect dependency on the xdg/stringprep package which is causing go get github.com/go-swagger/go-swagger/cmd/swagger to fail

 go get: github.com/go-swagger/go-swagger@v0.26.1 requires
       github.com/go-openapi/loads@v0.20.1 requires
       go.mongodb.org/mongo-driver@v1.4.5 requires
       github.com/xdg/stringprep@v0.0.0-20180714160509-73f8eece6fdc: invalid version: unknown revision 73f8eece6fdc

The mongo-driver package was recently updated to fix this issue: mongodb/mongo-go-driver#624

I will open an issue in go-openapi/loads as well.

Steps to reproduce

go get github.com/go-swagger/go-swagger/cmd/swagger

Environment

swagger version: v0.26.1
go version: 1.13.5 linux/amd64
OS: Ubuntu 18.04.3 LTS