rem: if (nb_childs)
add: if (playlist->_priv->nb_childs)
context: totem_playlist_set_at_end (TotemPlaylist *playlist){	gint nb_childs = 0;	g_return_if_fail (GTK_IS_PLAYLIST (playlist));		totem_playlist_unset_playing (playlist);		nb_childs = gtk_tree_model_iter_n_children (playlist->_priv->model,			NULL);	if (playlist->_priv->current != NULL)	{		gtk_tree_path_free (playlist->_priv->current);		playlist->_priv->current = NULL;	}	if (nb_childs)	{		playlist->_priv->current = gtk_tree_path_new_from_indices			(nb_childs-1, -1);	}}