Ankerctl command line should give list of commands even if -v or -p 1 etc options are given but no command is given.

[kivinen]

Describe the bug

ankerctl.py -v
ankerctl.py -p 1
ankerctl.py

produce different outputs. Only the last one shows the commands, the first two just say there was error, use -h to see full usage.

To Reproduce

ankerctl.py -v

Expected behavior

Current returns

Usage: ankerctl.py [OPTIONS] COMMAND [ARGS]...
Try 'ankerctl.py -h' for help.

Error: Missing command.

should return

Options:
  --pppp-dump <file.log>  Enable logging of PPPP data to <file.log>
  -k, --insecure          Disable TLS certificate validation
  -v, --verbose           Increase verbosity
  -q, --quiet             Decrease verbosity
  -p, --printer INTEGER   Select printer number
  -h, --help              Show this message and exit.

Commands:
  config     View and update configuration
  http       Low-level http api access
  mqtt       Low-level mqtt api access
  pppp       Low-level pppp api access
  webserver  Built-in webserver support

Desktop (please complete the following information):

• OS: windows