In such cases, `pacmd help` prints
No PulseAudio daemon running, or not running as session daemon.
to stderr, which ends up printed to the user terminal.
To implement this mostly as a wrapper around pactl, we add the list of
commands for this to that. It's 90% the same anyway. (This means that
`pactl suspend ` will complete files instead of commands like `pactl
banana ` would, but neither is correct)
