Install golang-github-cznic-sortutil-dev by entering the following commands in the terminal:
sudo apt update sudo apt install golang-github-cznic-sortutil-dev
Description:
extensions to standard Go "sort" package
Utilities supplemental to the Go standard "sort" package.
Homepage: https://github.com/cznic/sortutil
Version: 0.0~git20150617.0.4c73428-2
Section: universe/devel