[pitivi] Add tooltips to buttons at the bottom of the Preferences UI

[Jean-FranÃois Fortin Tam <jfft src gnome org>]

commit 9017fc600210b04b16067ba400131aeda77f5904
Author: Jean-FranÃois Fortin Tam <nekohayo gmail com>
Date:   Sun Jul 22 13:06:40 2012 -0400

    Add tooltips to buttons at the bottom of the Preferences UI

 data/ui/preferences.ui |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/preferences.ui b/data/ui/preferences.ui
index 7a364fb..da4e778 100644
--- a/data/ui/preferences.ui
+++ b/data/ui/preferences.ui
@@ -117,6 +117,7 @@
                 <property name="sensitive">False</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
+                <property name="tooltip_text" translatable="yes">Reset all settings to their default values</property>
                 <property name="use_action_appearance">False</property>
                 <signal name="clicked" handler="_factorySettingsButtonCb" swapped="no"/>
               </object>
@@ -134,6 +135,7 @@
                 <property name="sensitive">False</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
+                <property name="tooltip_text" translatable="yes">Revert all settings to the previous values (before you opened the preferences dialog)</property>
                 <property name="use_action_appearance">False</property>
                 <signal name="clicked" handler="_revertButtonCb" swapped="no"/>
               </object>