[gtk] Run gtk-builder-tool simplify over our ui files

[Matthias Clasen <matthiasc src gnome org>]

commit 9bbacd3e4c7b1fa77888abd8fa385c3b3d0b70ea
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Dec 12 18:37:39 2019 -0500

    Run gtk-builder-tool simplify over our ui files
    
    This was done mainly to verify that the tool does not
    make any unwarranted changes. The changes included here
    are all cosmetic.

 gtk/ui/gtkdialog.ui            | 2 +-
 gtk/ui/gtkfilechooserwidget.ui | 3 +--
 gtk/ui/gtkvideo.ui             | 1 +
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/ui/gtkdialog.ui b/gtk/ui/gtkdialog.ui
index f7aef0aac0..776ff7aa9b 100644
--- a/gtk/ui/gtkdialog.ui
+++ b/gtk/ui/gtkdialog.ui
@@ -5,7 +5,7 @@
     <child type="titlebar">
       <object class="GtkHeaderBar" id="headerbar">
         <property name="show-title-buttons">1</property>
-        <property name="has-subtitle">false</property>
+        <property name="has-subtitle">0</property>
       </object>
     </child>
     <child>
diff --git a/gtk/ui/gtkfilechooserwidget.ui b/gtk/ui/gtkfilechooserwidget.ui
index f5af3532cb..263bd6af2a 100644
--- a/gtk/ui/gtkfilechooserwidget.ui
+++ b/gtk/ui/gtkfilechooserwidget.ui
@@ -165,7 +165,7 @@
                                             <signal name="query-tooltip" 
handler="file_list_query_tooltip_cb" swapped="no"/>
                                             <signal name="row-activated" handler="list_row_activated" 
swapped="no"/>
                                             <signal name="cursor-changed" handler="list_cursor_changed" 
swapped="no"/>
-                                            <signal name="keynav-failed" 
handler="browse_files_tree_view_keynav_failed_cb" />
+                                            <signal name="keynav-failed" 
handler="browse_files_tree_view_keynav_failed_cb"/>
                                             <child internal-child="selection">
                                               <object class="GtkTreeSelection" id="treeview-selection2">
                                                 <signal name="changed" handler="list_selection_changed" 
swapped="no"/>
@@ -445,7 +445,6 @@
     </child>
   </object>
   <object class="GtkPopover" id="rename_file_popover">
-    <property name="position">bottom</property>
     <signal name="closed" handler="rename_file_end"/>
     <child>
       <object class="GtkGrid">
diff --git a/gtk/ui/gtkvideo.ui b/gtk/ui/gtkvideo.ui
index 6a479e1aa3..2b245b40d1 100644
--- a/gtk/ui/gtkvideo.ui
+++ b/gtk/ui/gtkvideo.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface domain="gtk40">
   <template class="GtkVideo" parent="GtkWidget">
     <child>