[glib] tests: fix leak in mainloop test

[Stefan Walter <stefw src gnome org>]

commit 92b71825fd6b62e339b89159b2cfba8e5ca839c4
Author: Ryan Lortie <desrt desrt ca>
Date:   Sun Mar 24 21:55:08 2013 -0400

    tests: fix leak in mainloop test
    
    Properly unref a pair of GSources in the unix-fd mainloop test.
    
    valgrind was reporting these as 'still reachable' before (possibly due
    to some residual pointers somewhere in memory), but when running with
    G_DEBUG=cleanup they were properly reported as leaked.

 glib/tests/mainloop.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/glib/tests/mainloop.c b/glib/tests/mainloop.c
index 2eaaa94..1acc3b4 100644
--- a/glib/tests/mainloop.c
+++ b/glib/tests/mainloop.c
@@ -1273,7 +1273,9 @@ test_unix_fd_source (void)
   g_assert (in && out);
 
   g_source_destroy (out_source);
+  g_source_unref (out_source);
   g_source_destroy (in_source);
+  g_source_unref (in_source);
   close (fds[1]);
   close (fds[0]);
 }