[nautilus] preferences: add tittle

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit d03083b1af5263d4fc332898968333a8819b483c
Author: Carlos Soriano <csoriano gnome org>
Date:   Mon Feb 15 11:37:23 2016 +0100

    preferences: add tittle
    
    It was missing.

 src/resources/ui/nautilus-preferences-window.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/resources/ui/nautilus-preferences-window.ui b/src/resources/ui/nautilus-preferences-window.ui
index 2be9b31..31ab089 100644
--- a/src/resources/ui/nautilus-preferences-window.ui
+++ b/src/resources/ui/nautilus-preferences-window.ui
@@ -167,6 +167,7 @@
   </object>
   <object class="GtkWindow" id="preferences_window">
     <property name="can_focus">False</property>
+    <property name="title" translatable="yes">Files Preferences</property>
     <property name="resizable">False</property>
     <property name="modal">True</property>
     <property name="destroy_with_parent">True</property>