[gtk+] Minor doc fixup

[Matthias Clasen <matthiasc src gnome org>]

commit 75c22332d0aa3630285987469a4692229fec365f
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue May 13 11:42:31 2014 -0400

    Minor doc fixup

 gtk/gtktreestore.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtktreestore.c b/gtk/gtktreestore.c
index 1ef7a39..a6e47af 100644
--- a/gtk/gtktreestore.c
+++ b/gtk/gtktreestore.c
@@ -2248,8 +2248,8 @@ gtk_tree_store_reorder_func (gconstpointer a,
 
 /**
  * gtk_tree_store_reorder: (skip)
- * @tree_store: A #GtkTreeStore.
- * @parent: A #GtkTreeIter.
+ * @tree_store: A #GtkTreeStore
+ * @parent: A #GtkTreeIter, or %NULL
  * @new_order: (array): an array of integers mapping the new position of each child
  *      to its old position before the re-ordering,
  *      i.e. @new_order`[newpos] = oldpos`.