Update the documentation to specify a more useful behaviour, which can be

Update the documentation to specify a more useful behaviour, which can be

2004-11-30  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtktreesortable.c (gtk_tree_sortable_get_sort_column_id): Update
	the documentation to specify a more useful behaviour, which can be
	implemented with the multiple special values we have now.  (#159984,
	Nicholas Rahn)

	* gtk/gtktreemodelsort.c (gtk_tree_model_sort_get_sort_column_id):
	* gtk/gtktreestore.c (gtk_tree_store_get_sort_column_id):
	* gtk/gtkliststore.c (gtk_list_store_get_sort_column_id): Update the
	implementations.