[gtk/matthiasc/for-master: 9/9] gtk-demo: Fix the stack demo

[Matthias Clasen <matthiasc src gnome org>]

commit f3d061e8792d34e8e267b04ee5cba90a7023b01f
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Mar 28 00:07:05 2020 -0400

    gtk-demo: Fix the stack demo
    
    The GtkSpinner:active property was renamed to :spinning.

 demos/gtk-demo/stack.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/demos/gtk-demo/stack.ui b/demos/gtk-demo/stack.ui
index adaccfd019..adffefa10d 100644
--- a/demos/gtk-demo/stack.ui
+++ b/demos/gtk-demo/stack.ui
@@ -53,7 +53,7 @@
                   <object class="GtkSpinner">
                     <property name="halign">center</property>
                     <property name="valign">center</property>
-                    <property name="active">1</property>
+                    <property name="spinning">1</property>
                   </object>
                 </property>
               </object>