[gedit] gedit-window: Add mnemonic for Save button

[Paolo Borelli <pborelli src gnome org>]

commit 523df1ee2016376ed7f66d200a8f193444020657
Author: Lasse Schuirmann <lasse schuirmann gmail com>
Date:   Fri Aug 15 12:41:48 2014 +0200

    gedit-window: Add mnemonic for Save button
    
    https://bugzilla.gnome.org/show_bug.cgi?id=734846

 gedit/resources/ui/gedit-window.ui |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gedit/resources/ui/gedit-window.ui b/gedit/resources/ui/gedit-window.ui
index a3e544c..30a1323 100644
--- a/gedit/resources/ui/gedit-window.ui
+++ b/gedit/resources/ui/gedit-window.ui
@@ -107,7 +107,8 @@
             </child>
             <child>
               <object class="GtkButton" id="save_button">
-                <property name="label" translatable="yes">Save</property>
+                <property name="label" translatable="yes">_Save</property>
+                <property name="use-underline">True</property>
                 <property name="visible">True</property>
                 <property name="valign">center</property>
                 <property name="tooltip_text" translatable="yes">Save the current file</property>