1. Summarise the issue (what were doing, what went wrong?)

> darcs --commands
help
changes
get
initialize
convert
--help
--version
--exact-version
--overview

2. What behaviour were you expecting instead?

darcs --commands should list all darcs commands

The --commands option is used by the standard zsh command line
completion which was contributed to zsh 2009 by Nicolas Pouillard.

3. What darcs version are you using? (Try: darcs --exact-version)

2.9.5 (+ 157 patches) and 2.8.0. Older versions probably too, this has
been broken for a long time, though I cannot remember exactly how long.

4. What operating system are you running?

Debian Gnu/Linux (probably irrelevant here).

My bad, I tested outside a repository, of course it lists only the
commands that apply in this case. Stupid me!

In the meantime I have stumbled over this again. The point is: sometime
you want to issue a darcs command, you are not inside the repo, but you
plan to pass the --repodir=/path/to/repo flag. In this case the
completion doesn't work which can be annoying.

I have no conclusive idea yet what to do about this.