1 files changed, 4 insertions, 1 deletions

diff --git a/lisp/diff.el b/lisp/diff.el
index 7b92c6a4314..138f674ea08 100644
--- a/lisp/diff.el
+++ b/lisp/diff.el
@@ -1,4 +1,5 @@
-;; "DIFF" mode for handling output from unix diff utility.
+;;; diff.el --- "DIFF" mode for handling output from unix diff utility.
+
 ;; Copyright (C) 1990 Free Software Foundation, Inc.
 ;; Written fpb@ittc.wec.com 1/27/89
 
@@ -269,3 +270,5 @@ Differences are delimited by `diff-search-pattern'."
           (setq cnt (1+ cnt)))
         (message "Counting differences...done (%d)" cnt)
         cnt))))
+
+;;; diff.el ends here