master dfbbbf3: * lisp/tab-line.el (tab-line-auto-hscroll): Don't let-bind buffer-local values

[Juri Linkov]

branch: master
commit dfbbbf319e4e357c82a79944090c949f3c5299c3
Author: Juri Linkov <address@hidden>
Commit: Juri Linkov <address@hidden>

    * lisp/tab-line.el (tab-line-auto-hscroll): Don't let-bind buffer-local 
values
    
    Use setq to set buffer-local values of truncate-lines and buffer-undo-list.
    This will prevent leaking of let-bound values to buffer-local values
    of the minibuffer.
---
 lisp/tab-line.el | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lisp/tab-line.el b/lisp/tab-line.el
index 0f70184..c98b1cf 100644
--- a/lisp/tab-line.el
+++ b/lisp/tab-line.el
@@ -482,10 +482,10 @@ the selected tab visible."
 (defun tab-line-auto-hscroll (strings hscroll)
   (with-temp-buffer
     (let ((truncate-partial-width-windows nil)
-          (truncate-lines nil)
           (inhibit-modification-hooks t)
-          (buffer-undo-list t)
           show-arrows)
+      (setq truncate-lines nil
+            buffer-undo-list t)
       (apply 'insert strings)
       (goto-char (point-min))
       (add-face-text-property (point-min) (point-max) 'tab-line)