--- emacs-24.2/lisp/help-fns.el	2012-08-22 22:33:42.000000000 -0700
+++ emacs-24.2/lisp/help-fns.el.new2	2012-12-04 14:15:45.296692483 -0700
@@ -742,7 +742,7 @@
                 (princ (format "%socal in buffer %s; "
                                (if (get variable 'permanent-local)
                                    "Permanently l" "L")
-                               (buffer-name))))
+                               (with-current-buffer buffer (buffer-name)))))
                ((framep locus)
                 (princ (format "It is a frame-local variable; ")))
                ((terminal-live-p locus)