bug#3644: describe-function (quote vc-dir)

[jidanni]

$ emacs-snapshot -Q -l vc-dir.elc -eval '(describe-function (quote vc-dir))'
says
  These are the commands available for use in the file status buffer:
but nothing follows. One has to do
$ emacs-snapshot -Q -eval '(describe-function (quote vc-dir))'
to at least see a more reasonable following
  Uses keymap "vc-dir-mode-map", which is not currently defined.

By the way, maybe related,
$ svn status
shows modified files, but vc-dir didn't show any files except the
directory itself. And C-x v d file completion only let me complete
dotfiles: .svn ...

emacs 23 snapshot