[pango] Fix last leak in test-pangocairo-threads

[Behdad Esfahbod <behdad src gnome org>]

commit 4dd5a5e18d4d3184ce4c97e0bcd9e97ebb267831
Author: Behdad Esfahbod <behdad behdad org>
Date:   Mon Jan 7 15:29:15 2013 -0600

    Fix last leak in test-pangocairo-threads

 tests/test-pangocairo-threads.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/tests/test-pangocairo-threads.c b/tests/test-pangocairo-threads.c
index 520f7c3..6d49760 100644
--- a/tests/test-pangocairo-threads.c
+++ b/tests/test-pangocairo-threads.c
@@ -82,10 +82,12 @@ main (int argc, char **argv)
 
   for (i = 0; i < num_threads; i++)
     {
+      char buf[10];
       cairo_surface_t *surface = create_surface ();
       g_ptr_array_add (surfaces, surface);
+      snprintf (buf, sizeof (buf), "%d", i);
       g_ptr_array_add (threads,
-		       g_thread_new (g_strdup_printf ("%d", i),
+		       g_thread_new (buf,
 				     thread_func,
 				     surface));
     }