[easytag] Add a translator comment for a CDDB column header

[David King <davidk src gnome org>]

commit 653b1b717f7371791f27a4aefa28c22bb22718de
Author: David King <amigadave amigadave com>
Date:   Wed Mar 25 16:56:08 2015 +0100

    Add a translator comment for a CDDB column header
    
    As suggested by Alexandre Franke.

 data/cddb_dialog.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/cddb_dialog.ui b/data/cddb_dialog.ui
index dee816b..b3e3580 100644
--- a/data/cddb_dialog.ui
+++ b/data/cddb_dialog.ui
@@ -394,7 +394,7 @@ r               <child>
                                         <child>
                                             <object class="GtkTreeViewColumn" id="number_column">
                                                 <property name="sort-column-id">0</property>
-                                                <property name="title" translatable="yes">#</property>
+                                                <property name="title" translatable="yes" 
comments="Translators: column header for track number.">#</property>
                                                 <child>
                                                     <object class="GtkCellRendererText" 
id="number_renderer"/>
                                                     <attributes>