[evince] shell: Add meaning for 'Outline' in the sidebar for translators

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 4405f3ee574f2c3fd1a1b67baf2d4fbc6aed2661
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Fri Jan 8 12:05:28 2016 -0800

    shell: Add meaning for 'Outline' in the sidebar for translators
    
    Fix https://bugzilla.gnome.org/show_bug.cgi?id=760136

 shell/ev-sidebar-links.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/shell/ev-sidebar-links.c b/shell/ev-sidebar-links.c
index bfc7869..230a96a 100644
--- a/shell/ev-sidebar-links.c
+++ b/shell/ev-sidebar-links.c
@@ -719,7 +719,13 @@ ev_sidebar_links_support_document (EvSidebarPage  *sidebar_page,
 static const gchar*
 ev_sidebar_links_get_label (EvSidebarPage *sidebar_page)
 {
-    return _("Outline");
+       /* Translators: This is the title for the sidebar pane that
+        * shows the Outline or Table of Contents of the document.
+        * Use a short text, otherwise it can make Evince unusable in
+        * your language.  The sidebar cannot be shrinked smaller than
+        * the longest title in there.
+        */
+       return _("Outline");
 }
 
 static void