[empathy] Add a comment explaining translator how to make the Facebook string look nice

[Guillaume Desmottes <gdesmott src gnome org>]

commit a450bc13ff9de2546bc450e41479a531e85ea647
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Thu Mar 25 11:36:55 2010 +0100

    Add a comment explaining translator how to make the Facebook string look nice

 libempathy-gtk/empathy-account-widget-jabber.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libempathy-gtk/empathy-account-widget-jabber.ui b/libempathy-gtk/empathy-account-widget-jabber.ui
index 76f11de..39a4eac 100644
--- a/libempathy-gtk/empathy-account-widget-jabber.ui
+++ b/libempathy-gtk/empathy-account-widget-jabber.ui
@@ -140,7 +140,7 @@
               <object class="GtkLabel" id="label_username_f_example">
                 <property name="xalign">0</property>
                 <property name="xpad">3</property>
-                <property name="label" translatable="yes">This is your username, not your normal Facebook login.
+                <property name="label" translatable="yes" comments="This string is not wrapped in the dialog so you may have to add some '\n' to make it look nice.">This is your username, not your normal Facebook login.
 If you are facebook.com/&lt;b&gt;badger&lt;/b&gt;, enter &lt;b&gt;badger&lt;/b&gt;.
 Use &lt;a href="http://www.facebook.com/username/"&gt;this page&lt;/a&gt; to choose a Facebook username if you don't have one.</property>
                 <property name="use_markup">True</property>