Trivial doc string fix, not worthy of a ChangeLog entry.

diff --git a/lisp/nnmail.el b/lisp/nnmail.el
index 39b22a1..07beb40 100644 (file)
--- a/lisp/nnmail.el
+++ b/lisp/nnmail.el
@@ -125,7 +125,7 @@ If nil, the first match found will be used."
 
 (defcustom nnmail-cache-ignore-groups nil
   "Regexp that matches group names to be ignored when inserting message
-ids into the cache (`nnmail-cache-insert'). This can also be a list
+ids into the cache (`nnmail-cache-insert').  This can also be a list
 of regexps."
   :group 'nnmail-split
   :type '(choice (const :tag "none" nil)