DX: CLI runs tests when list of arguments is desired

[JohnAlbin]

I would expect a list of commands and options to be output when I run loki -h or loki --help, instead Loki starts firing up Docker and running tests.

I just tried running loki without commands or options and it does the same thing. Is the default to run "update" when no command is given? That seems bad as well. It should output the help in this case as well.