Add docstring to gnus-group-toggle-subscription

* lisp/gnus/gnus-group.el (gnus-group-toggle-subscription): Add
docstring.

(cherry picked from commit 8e27f5bc5276287038dcdbaa8d09bc42f61d1073)

diff --git a/lisp/gnus/gnus-group.el b/lisp/gnus/gnus-group.el
index 5ae58e06b5e13a1fd797c27354d561c501072ec1..0e8de041d22f41df407e2eb4ef9a9a3d97d9fd3a 100644 (file)
--- a/lisp/gnus/gnus-group.el
+++ b/lisp/gnus/gnus-group.el
@@ -3851,6 +3851,7 @@ If given numerical prefix, toggle the N next groups."
   (gnus-group-next-group 1))
 
 (defun gnus-group-toggle-subscription (group &optional silent)
+  "Prompt for group, and toggle its subscription."
   (interactive (list (gnus-group-completing-read
                      nil nil (gnus-read-active-file-p)))
               gnus-group-mode)