[gtk/included-icons: 5/7] sidebar demo: Use an existing icon

[Matthias Clasen <matthiasc src gnome org>]

commit 12c93cfbee7cae28a1796c08f9c6d96082760a4b
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 12 20:24:27 2019 -0500

    sidebar demo: Use an existing icon
    
    The help-about icon is legacy and not available in large sizes.
    Just use the gtk-demo logo.

 demos/gtk-demo/sidebar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/demos/gtk-demo/sidebar.c b/demos/gtk-demo/sidebar.c
index d5732cec69..ab4ab2a7e4 100644
--- a/demos/gtk-demo/sidebar.c
+++ b/demos/gtk-demo/sidebar.c
@@ -65,7 +65,7 @@ do_sidebar (GtkWidget *do_widget)
         {
           if (i == 0)
             {
-              widget = gtk_image_new_from_icon_name ("help-about");
+              widget = gtk_image_new_from_icon_name ("org.gtk.Demo");
               gtk_image_set_pixel_size (GTK_IMAGE (widget), 256);
             }
           else