bug#33273: guix system does not emit command-list when run with no arguments

[swedebugia]

Hi

I'm going to prepare a patch for this if nobody beats me to it :D

$ guix system
guix system: missing command name
Try 'guix system --help' for more information.

I would have liked ->

$ guix system
Usage: guix system [OPTION ...] ACTION [ARG ...] [FILE]
Build the operating system declared in FILE according to ACTION.
Some ACTIONS support additional ARGS.

The valid values for ACTION are:

   search           search for existing service types
   reconfigure      switch to a new operating system configuration
   roll-back        switch to the previous operating system configuration
   switch-generation switch to an existing operating system configuration
   list-generations list the system generations
   build            build the operating system without installing anything
   container        build a container that shares the host's store
   vm               build a virtual machine image that shares the 
host's store
   vm-image         build a freestanding virtual machine image
   disk-image       build a disk image, suitable for a USB stick
   docker-image     build a Docker image
   init             initialize a root file system to run GNU
   extension-graph  emit the service extension graph in Dot format
   shepherd-graph   emit the graph of shepherd services in Dot format

See --help for more information.

---

$ guix --version
guix (GNU Guix) 1f44934fb6e2cefccbecd4fa347025349fa9ff76

--
Cheers
Swedebugia