[gtk+] notebook: Use initial-gap on both edges of the tab header

[William Jon McCann <mccann src gnome org>]

commit 81b0808849492e91e5b1cafff9af02daf144aafb
Author: William Jon McCann <william jon mccann gmail com>
Date:   Mon Aug 5 12:32:44 2013 +0200

    notebook: Use initial-gap on both edges of the tab header
    
    https://bugzilla.gnome.org/show_bug.cgi?id=707920

 gtk/gtknotebook.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index f008101..8fd2d48 100644
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -2148,7 +2148,7 @@ gtk_notebook_get_preferred_tabs_size (GtkNotebook    *notebook,
 
           action_width += action_widget_requisition[ACTION_WIDGET_START].width;
           action_width += action_widget_requisition[ACTION_WIDGET_END].width;
-          requisition->width = tab_width + tab_overlap + action_width + initial_gap;
+          requisition->width = tab_width + tab_overlap + action_width + 2 * initial_gap;
 
           requisition->height = tab_height;
           break;
@@ -2187,7 +2187,7 @@ gtk_notebook_get_preferred_tabs_size (GtkNotebook    *notebook,
           action_height += action_widget_requisition[ACTION_WIDGET_START].height;
           action_height += action_widget_requisition[ACTION_WIDGET_END].height;
 
-          requisition->height = tab_height + tab_overlap + action_height + initial_gap;
+          requisition->height = tab_height + tab_overlap + action_height + 2 * initial_gap;
 
           requisition->height = MAX (requisition->height, tab_max + tab_overlap);