[gitg] files: add missing sentinel

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 3a725e641b80722a25121221c9a9cfdb4e9b08b2
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Thu Oct 18 12:49:37 2012 +0200

    files: add missing sentinel

 plugins/files/gitg-files-tree-store.vala |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/plugins/files/gitg-files-tree-store.vala b/plugins/files/gitg-files-tree-store.vala
index fd81f9c..fcc534c 100644
--- a/plugins/files/gitg-files-tree-store.vala
+++ b/plugins/files/gitg-files-tree-store.vala
@@ -135,7 +135,8 @@ public class TreeStore : Gtk.TreeStore
 				set(iter,
 				    0, entry.get_name(),
 				    1, isdir,
-				    2, entry.get_id());
+				    2, entry.get_id(),
+				    -1);
 
 				if (isdir)
 				{