[gtk] widget-factory: Reinstate some lost properties

[Matthias Clasen <matthiasc src gnome org>]

commit e0dac3ab732d21bf4029485cef5a179c91ce4a00
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Feb 8 10:32:23 2019 -0500

    widget-factory: Reinstate some lost properties
    
    The code in gtk-builder-tool to preserve properties
    has a bug, It lost these.

 demos/widget-factory/widget-factory.ui | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index 54a082aaeb..419f1493d8 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -514,6 +514,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                             </child>
                             <child>
                               <object class="GtkBox">
+                                <property name="hexpand">0</property>
                                 <style>
                                   <class name="linked"/>
                                 </style>
@@ -1626,6 +1627,7 @@ microphone-sensitivity-medium-symbolic</property>
                                 <property name="shadow-type">in</property>
                                 <property name="hscrollbar-policy">never</property>
                                 <property name="min-content-height">200</property>
+                                <property name="hexpand">0</property>
                                 <child>
                                   <object class="GtkListBox" id="listbox">
                                     <property name="selection-mode">none</property>