(diff-latest-backup-file): Call file name handler properly.

diff --git a/lisp/diff.el b/lisp/diff.el
index a6793dca51f76605572418218346318c64887f7a..8de44211ffdcfc4847af777e36d52bb218a46a6e 100644 (file)
--- a/lisp/diff.el
+++ b/lisp/diff.el
@@ -256,7 +256,7 @@ The backup file is the first file given to `diff'."
   "Return the latest existing backup of FILE, or nil."
   (let ((handler (find-file-name-handler fn)))
     (if handler
-       (funcall handler fn)
+       (funcall handler 'diff-latest-backup-file fn)
       ;; First try simple backup, then the highest numbered of the
       ;; numbered backups.
       ;; Ignore the value of version-control because we look for existing