[libsecret] secret-sync: Fix SecretSync leak

[Christophe Fergeau <teuf src gnome org>]

commit b8bd3d0de87a37d9329850c64cac19e2ca654c37
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Sat Oct 17 23:17:02 2015 +0200

    secret-sync: Fix SecretSync leak
    
    The memory allocated for the SecretSync instance itself was not freed. This fixes:
    ==7106== 24 bytes in 1 blocks are definitely lost in loss record 855 of 1,629
    ==7106==    at 0x4C2A9C7: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
    ==7106==    by 0x600303F: g_malloc0 (gmem.c:124)
    ==7106==    by 0x6003322: g_malloc0_n (gmem.c:354)
    ==7106==    by 0x4E6979D: _secret_sync_new (secret-util.c:441)
    ==7106==    by 0x4E65D11: secret_service_read_alias_dbus_path_sync (secret-paths.c:2334)
    ==7106==    by 0x4E4E09E: secret_collection_for_alias_sync (secret-collection.c:2221)
    ==7106==    by 0x40270E: test_for_alias_sync (test-collection.c:187)
    ==7106==    by 0x60258FA: test_case_run (gtestutils.c:2158)
    ==7106==    by 0x6025CBB: g_test_run_suite_internal (gtestutils.c:2241)
    ==7106==    by 0x6025D64: g_test_run_suite_internal (gtestutils.c:2253)
    ==7106==    by 0x6025F7B: g_test_run_suite (gtestutils.c:2328)
    ==7106==    by 0x6024C1C: g_test_run (gtestutils.c:1596)
    ==7106==    by 0x4E7CA3B: egg_tests_run_with_loop (egg-testing.c:167)
    ==7106==    by 0x406948: main (test-collection.c:1033)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756766

 libsecret/secret-util.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libsecret/secret-util.c b/libsecret/secret-util.c
index 67ac081..ba5ac1e 100644
--- a/libsecret/secret-util.c
+++ b/libsecret/secret-util.c
@@ -453,6 +453,7 @@ _secret_sync_free (gpointer data)
        g_clear_object (&sync->result);
        g_main_loop_unref (sync->loop);
        g_main_context_unref (sync->context);
+       g_free (sync);
 }
 
 void