Comment change.

1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/follow.el b/lisp/follow.el
index 3edc62e5784..328d73ae6a6 100644
--- a/lisp/follow.el
+++ b/lisp/follow.el
@@ -1524,6 +1524,8 @@ non-first windows in Follow mode."
               ;; If the region is visible, make it look good when spanning
               ;; multiple windows.
               (if (or (and (boundp 'mark-active) (symbol-value 'mark-active))
+                      ;; The following isn't used in Emacs,
+                      ;; since `mark-active' is bound.
                       (and (fboundp 'region-active-p)
                            (funcall (symbol-function 'region-active-p))))
                   (follow-maximize-region