[glib/wip/nielsdg/avoid-time-null] Forgot to adjust declaration of `now` variable.

[Niels De Graef <nielsdg src gnome org>]

commit 2d9047de1ccc8ed6e5d3dec30eca0b86c969c80a
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Tue Jun 26 23:23:40 2018 +0200

    Forgot to adjust declaration of `now` variable.

 gio/gdbusauthmechanismsha1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gio/gdbusauthmechanismsha1.c b/gio/gdbusauthmechanismsha1.c
index d47221f5b..0f9e45c4d 100644
--- a/gio/gdbusauthmechanismsha1.c
+++ b/gio/gdbusauthmechanismsha1.c
@@ -603,7 +603,7 @@ keyring_generate_entry (const gchar  *cookie_context,
   gchar **lines;
   gint max_line_id;
   GString *new_contents;
-  guint64 now;
+  gint64 now;
   gboolean have_id;
   gint use_id;
   gchar *use_cookie;