(mail-source-delete-old-incoming-confirm): Fix typo in docstring.

diff --git a/lisp/gnus/mail-source.el b/lisp/gnus/mail-source.el
index b991415342dd28052c7c28ce90f675584973cafc..99596d2584b849f6dade860634acb7aaacbd00c8 100644 (file)
--- a/lisp/gnus/mail-source.el
+++ b/lisp/gnus/mail-source.el
@@ -284,7 +284,7 @@ files older than number of days."
                 (integer :tag "days")))
 
 (defcustom mail-source-delete-old-incoming-confirm t
-  "*If non-nil, ask for for confirmation before deleting old incoming files.
+  "*If non-nil, ask for confirmation before deleting old incoming files.
 This variable only applies when `mail-source-delete-incoming' is a positive
 number."
   :version "22.1"