Small codes update for revert-buffer-function no longer being nil by default

* lisp/menu-bar.el (menu-bar-file-menu):
* lisp/vc/ediff.el (ediff-current-file):
Update for revert-buffer-function no longer being nil by default.

3 files changed, 13 insertions, 4 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 0bfc080f8ec..b1c35a78937 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,9 @@
 2014-04-02  Glenn Morris  <rgm@gnu.org>
 
+        * menu-bar.el (menu-bar-file-menu):
+        * vc/ediff.el (ediff-current-file):
+        Update for revert-buffer-function no longer being nil by default.
+
         * simple.el (command-execute): Respect nil disabled-command-function.
 
 2014-04-01  Nicolas Richard  <theonewiththeevillook@yahoo.fr>
diff --git a/lisp/menu-bar.el b/lisp/menu-bar.el
index 0e12c976af0..84df6922749 100644
--- a/lisp/menu-bar.el
+++ b/lisp/menu-bar.el
@@ -149,8 +149,11 @@
                   :help "Recover edits from a crashed session"))
     (bindings--define-key menu [revert-buffer]
       '(menu-item "Revert Buffer" revert-buffer
-                  :enable (or revert-buffer-function
-                              revert-buffer-insert-file-contents-function
+                  :enable (or (not (eq revert-buffer-function
+                                       'revert-buffer--default))
+                              (not (eq
+                                    revert-buffer-insert-file-contents-function
+                                    'revert-buffer-insert-file-contents--default-function))
                               (and buffer-file-number
                                    (or (buffer-modified-p)
                                        (not (verify-visited-file-modtime
diff --git a/lisp/vc/ediff.el b/lisp/vc/ediff.el
index d8abe89d17b..927a3ba7fb6 100644
--- a/lisp/vc/ediff.el
+++ b/lisp/vc/ediff.el
@@ -367,8 +367,10 @@ deleted."
 This command can be used instead of `revert-buffer'.  If there is
 nothing to revert then this command fails."
   (interactive)
-  (unless (or revert-buffer-function
-              revert-buffer-insert-file-contents-function
+  ;; This duplicates code from menu-bar.el.
+  (unless (or (not (eq revert-buffer-function 'revert-buffer--default))
+              (not (eq revert-buffer-insert-file-contents-function
+                       'revert-buffer-insert-file-contents--default-function))
               (and buffer-file-number
                    (or (buffer-modified-p)
                        (not (verify-visited-file-modtime