Describe the bug

Follow the pipx install documentation for MacOS causes a "unrecognized arguments" error on ensurepath command.

How to reproduce

➜ ~ sudo pipx ensurepath --global
Password:
usage: pipx [-h] [--quiet] [--verbose] [--global] [--version]
{install,uninject,inject,upgrade,upgrade-all,uninstall,uninstall-all,reinstall,reinstall-all,list,interpreter,run,runpip,ensurepath,environment,completions} ...
pipx: error: unrecognized arguments: --global
➜ ~

Expected behavior

Install pipx globally without errors