For instance, if you want to brew on all the nnml groups, as well as
groups with \"emacs\" in the name, you could say something like:
-$ emacs -batch -f gnus-batch-brew-soup ^nnml \".*emacs.*\""
+$ emacs -batch -f gnus-batch-brew-soup ^nnml \".*emacs.*\"
+
+Note -- this function hasn't been implemented yet."
(interactive)
nil)