[perl-Gtk2] Fix compiler warnings

[Torsten Schönfeld <tsch src gnome org>]

commit 63d4def4690fd71506dae6ed24c6f8beef64b281
Author: Torsten Schönfeld <kaffeetisch gmx de>
Date:   Sun Apr 11 15:27:08 2010 +0200

    Fix compiler warnings

 xs/GtkTreeModel.xs |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/xs/GtkTreeModel.xs b/xs/GtkTreeModel.xs
index 11235c6..aeacba3 100644
--- a/xs/GtkTreeModel.xs
+++ b/xs/GtkTreeModel.xs
@@ -925,7 +925,8 @@ SV*
 to_arrayref (GtkTreeIter * iter, IV stamp)
     CODE:
 	if (iter->stamp != stamp)
-		croak ("invalid iter -- stamp %d does not match requested %d",
+		croak ("invalid iter -- stamp %d does not match "
+		       "requested %" IVdf,
 		       iter->stamp, stamp);
         RETVAL = sv_from_iter (iter);
     OUTPUT:
@@ -1407,7 +1408,7 @@ gtk_tree_model_rows_reordered (tree_model, path, iter, ...)
 	if (items - 3 != n)
 		croak ("rows_reordered expects a list of as many indices"
 		       " as the selected node of the model has children\n"
-		       "   got %d, expected %d", items - 3, n);
+		       "   got %" IVdf ", expected %d", items - 3, n);
 	new_order = g_new (gint, n);
 	for (i = 0 ; i < n ; i++)
 		new_order[i] = SvIV (ST (3+i));