[meld] Add tooltip to read only toggle buttons

[Kai Willadsen <kaiw src gnome org>]

commit 12378b75cd663619ccd44689a72c834ddb2f75e2
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sat Dec 22 06:31:42 2012 +1000

    Add tooltip to read only toggle buttons

 data/ui/filediff.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/filediff.ui b/data/ui/filediff.ui
index d76b713..5c2a5fb 100644
--- a/data/ui/filediff.ui
+++ b/data/ui/filediff.ui
@@ -125,6 +125,7 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="relief">none</property>
+                    <property name="tooltip-text" translatable="yes">This file can not be written to. You may click here to unlock this file and make changes anyway, but these changes must be saved to a new file.</property>
                     <signal handler="on_readonly_button_toggled" name="toggled"/>
                     <child>
                       <object class="GtkImage" id="readonly_image2">
@@ -166,6 +167,7 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="relief">none</property>
+                    <property name="tooltip-text" translatable="yes">This file can not be written to. You may click here to unlock this file and make changes anyway, but these changes must be saved to a new file.</property>
                     <signal handler="on_readonly_button_toggled" name="toggled"/>
                     <child>
                       <object class="GtkImage" id="readonly_image1">
@@ -207,6 +209,7 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="relief">none</property>
+                    <property name="tooltip-text" translatable="yes">This file can not be written to. You may click here to unlock this file and make changes anyway, but these changes must be saved to a new file.</property>
                     <signal handler="on_readonly_button_toggled" name="toggled"/>
                     <child>
                       <object class="GtkImage" id="readonly_image0">