[dconf-editor] Fix invisible button.

[Arnaud B. <arnaudb src gnome org>]

commit 22ad80f393cf0d698eaeb91ee3af179f7d748603
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Jan 4 18:12:27 2019 +0100

    Fix invisible button.
    
    The invisible button was sharing the available space with the
    search button (not toggle); set hexpand to false on this one.

 editor/pathwidget.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/editor/pathwidget.ui b/editor/pathwidget.ui
index 32896a5..b1e51ef 100644
--- a/editor/pathwidget.ui
+++ b/editor/pathwidget.ui
@@ -31,7 +31,7 @@
               <object class="GtkModelButton" id="search_button">
                 <property name="visible">False</property>
                 <property name="halign">end</property>
-                <property name="hexpand">True</property>
+                <property name="hexpand">False</property>
                 <property name="valign">center</property>
                 <property name="focus-on-click">False</property>
                 <property name="iconic">True</property>