(hook): Fix typo in docstring.

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index c70284f4455563dd333f3b6ad3e4f2d520eb2412..624b657159aa170a5948c1b4f6efe8f912e51d2c 100644 (file)
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -3631,7 +3631,7 @@ restoring it to the state of a face that has never been customized."
 ;;; The `hook' Widget.
 
 (define-widget 'hook 'list
-  "A emacs lisp hook"
+  "An emacs lisp hook."
   :value-to-internal (lambda (widget value)
                       (if (and value (symbolp value))
                           (list value)