[mutter] Fix dump_region

[Jasper St. Pierre <jstpierre src gnome org>]

commit 5237b2aa65a2fa80a58cdb95052c158b183ddce7
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Jul 18 16:41:31 2011 -0400

    Fix dump_region

 src/compositor/meta-window-actor.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/compositor/meta-window-actor.c b/src/compositor/meta-window-actor.c
index 090f31f..acf09e1 100644
--- a/src/compositor/meta-window-actor.c
+++ b/src/compositor/meta-window-actor.c
@@ -1768,7 +1768,7 @@ dump_region (cairo_region_t *region)
   for (i = 0; i < n_rects; i++)
     {
       cairo_rectangle_int_t rect;
-      cairo_region_get_rectangle (region, &rect);
+      cairo_region_get_rectangle (region, i, &rect);
       g_print ("+%d+%dx%dx%d ",
                rect.x, rect.y, rect.width, rect.height);
     }