[gnome-control-center] color: Add a tooltip to the 'Learn more...' button

[Richard Hughes <rhughes src gnome org>]

commit 5a2402ab755016d0467d62dfacff60e2d3abd65a
Author: Richard Hughes <richard hughsie com>
Date:   Fri Aug 26 10:50:27 2011 +0100

    color: Add a tooltip to the 'Learn more...' button
    
    This avoids showing a nasty ghelp:// URL that's meaningless to most people.

 panels/color/color.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/panels/color/color.ui b/panels/color/color.ui
index f9d9d92..82a2827 100644
--- a/panels/color/color.ui
+++ b/panels/color/color.ui
@@ -205,6 +205,7 @@
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="has_tooltip">True</property>
+                <property name="tooltip_text" translatable="yes">Learn more about color management</property>
                 <property name="use_action_appearance">False</property>
                 <property name="relief">none</property>
                 <property name="xalign">0.50999999046325684</property>