[libdazzle] date-time: fix leak of date time

[Christian Hergert <chergert src gnome org>]

commit 3f95421a1afff65226aa54bb2dd674cbd910cff1
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jul 27 23:06:36 2018 -0700

    date-time: fix leak of date time

 src/util/dzl-date-time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/util/dzl-date-time.c b/src/util/dzl-date-time.c
index fc11c2b..9120153 100644
--- a/src/util/dzl-date-time.c
+++ b/src/util/dzl-date-time.c
@@ -35,7 +35,7 @@
 gchar *
 dzl_g_date_time_format_for_display (GDateTime *self)
 {
-  GDateTime *now;
+  g_autoptr(GDateTime) now = NULL;
   GTimeSpan diff;
   gint years;