To install coreutils-uutils, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install coreutils-uutils
To see what files were installed by coreutils-uutils, run:
port contents coreutils-uutils
To later upgrade coreutils-uutils, run:
sudo port selfupdate && sudo port upgrade coreutils-uutils
Reporting an issue on MacPorts Trac
The MacPorts Project uses a system called Trac to file tickets to report bugs and enhancement requests.
Though anyone may search Trac for tickets, you must have a GitHub account in order to login to Trac to create tickets.