Disable tab-bar by default in Speedbar frames

* lisp/speedbar.el (speedbar-frame-parameters): Set
tab-bar-lines to 0.

(cherry picked from commit 9e22cd30ebd68326c26a6e511d3722bdb5b9164c)

diff --git a/lisp/speedbar.el b/lisp/speedbar.el
index 2ed97986fe7e2e8bfceaaeec6ad9889e6e665ab0..c13c977938b9e5464082e34356714080d292450b 100644 (file)
--- a/lisp/speedbar.el
+++ b/lisp/speedbar.el
@@ -294,6 +294,7 @@ A nil value means don't show the file in the list."
                                       (border-width . 0)
                                       (menu-bar-lines . 0)
                                       (tool-bar-lines . 0)
+                                      (tab-bar-lines . 0)
                                       (unsplittable . t)
                                       (left-fringe . 0)
                                       )
@@ -304,7 +305,8 @@ attached to and added to this list before the new frame is initialized."
   :group 'speedbar
   :type '(repeat (cons :format "%v"
                       (symbol :tag "Parameter")
-                      (sexp :tag "Value"))))
+                      (sexp :tag "Value")))
+  :version "30.1")
 
 (defcustom speedbar-use-imenu-flag t
   "Non-nil means use imenu for file parsing, nil to use etags.