[gtk+/native-layout] Document missing signal parameter

[Tristan Van Berkom <tvb src gnome org>]

commit d3e91fbba6254f412769d54fa6c95d45b9370d00
Author: Benjamin Otte <otte gnome org>
Date:   Sun Jan 3 23:11:05 2010 +0100

    Document missing signal parameter

 gtk/gtktreemodel.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtktreemodel.c b/gtk/gtktreemodel.c
index 0d0a492..675f10b 100644
--- a/gtk/gtktreemodel.c
+++ b/gtk/gtktreemodel.c
@@ -257,6 +257,9 @@ gtk_tree_model_base_init (gpointer g_class)
        * @path: a #GtkTreePath identifying the tree node whose children
        *        have been reordered
        * @iter: a valid #GtkTreeIter pointing to the node whose 
+       * @new_order: an array of integers mapping the current position of
+       *             each child to its old position before the re-ordering,
+       *             i.e. @new_order<literal>[newpos] = oldpos</literal>.
        *
        * This signal is emitted when the children of a node in the #GtkTreeModel
        * have been reordered.