[gnome-themes-standard] Widget theme: add back separations to column-headers.

[Lapo Calamandrei <lapo src gnome org>]

commit 4a0a03187539b824fe203b4c2d218056990f86b3
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Wed Dec 21 00:09:29 2011 +0100

    Widget theme: add back separations to column-headers.

 themes/Adwaita/gtk-3.0/gtk-widgets-borders.css |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css b/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css
index 6c196d3..4aa1ad0 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css
@@ -144,7 +144,7 @@ column-header.button:active:hover,
 column-header .button:active:hover {
     border-image: -gtk-gradient (linear,
                                  left top, left bottom,
-                                 from (@button_border),
+                                 from (@borders),
                                  to (@theme_base_color)) 0 1 0 0;
     border-width: 0 1 0 0;
     border-radius: 0;