[gcalctool] Add translator comment to string (bug #631967)

[Robin Sonefors <rsonefors src gnome org>]

commit bdccc0f9637ed502816c9c86aace3adda4f19ad8
Author: Robin Sonefors <ozamosi flukkost nu>
Date:   Tue Oct 12 20:26:13 2010 +0200

    Add translator comment to string (bug #631967)

 data/buttons-advanced.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/buttons-advanced.ui b/data/buttons-advanced.ui
index 3b1c241..bf056a5 100644
--- a/data/buttons-advanced.ui
+++ b/data/buttons-advanced.ui
@@ -24,7 +24,7 @@
             <child>
               <object class="GtkLabel" id="label7">
                 <property name="visible">True</property>
-                <property name="label" translatable="yes">in</property>
+                <property name="label" translatable="yes" comments="This is between the unit selector dropdowns, for example: meters in kilometers"> in </property>
               </object>
               <packing>
                 <property name="expand">False</property>