describe-mode problem

[Hiroshi Fujishima]

Hi,

In the group buffer of Gnus with gnus-topic-mode enabled, M-x
describe-mode cause the error as below.

Debugger entered--Lisp error: (wrong-type-argument symbolp (lambda (&rest junk) 
(interactive) (gnus-topic-mode nil t)))
  fboundp((lambda (&rest junk) (interactive) (gnus-topic-mode nil t)))
  describe-mode()
  call-interactively(describe-mode)

I report this problem to semi-gnus-ja mailing-list.  Yamaoka-san who
is one of Gnus developer said it seem to be Emacs's problem: Though
add-minor-mode()'s 5th argument in the definition of gnus-topic-mode()
is lambda expression, describe-mode() check it by fboundp.

He also said this problem is occurl Gnus v5.11 though.

-- 
Hiroshi Fujishima