Subject: bug#39353: [PATCH] Ediff fix for ediff-scroll-horizontally

From: Kyle Hubert <[email-masked]>
Date: Fri, 31 Jan 2020 09:29:43 -0500

When ediff-scroll-horizontally interactively calls scroll-left and
scroll-right, current-prefix-arg should be used. This allows for the
case that when no args or '-' are passed to ediff-scroll-horizontally,
it will determine the default amount (half the window width or
half-again, respectively).
---
 lisp/vc/ediff-util.el | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lisp/vc/ediff-util.el b/lisp/vc/ediff-util.el
index a8af9ba37a..5f8a4a86b1 100644
--- a/lisp/vc/ediff-util.el
+++ b/lisp/vc/ediff-util.el
@@ -1540,10 +1540,10 @@ the width of the A/B/C windows."
    ;; hscrolling.
    (if (= last-command-event ?<)
        (lambda (arg)
-	 (let ((prefix-arg arg))
+	 (let ((current-prefix-arg arg))
 	   (call-interactively #'scroll-left)))
      (lambda (arg)
-       (let ((prefix-arg arg))
+       (let ((current-prefix-arg arg))
 	 (call-interactively #'scroll-right))))
    ;; calculate argument to scroll-left/right
    ;; if there is an explicit argument
-- 
2.25.0