[gnome-builder] src: transfer ownership of gir option group

[Christian Hergert <chergert src gnome org>]

commit c2501f4441b2e8eee353e2e01444b471327233a8
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 23 18:43:28 2019 -0800

    src: transfer ownership of gir option group

 src/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/main.c b/src/main.c
index ade1bf4c4..658ac55e1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -72,7 +72,7 @@ early_params_check (gint       *argc,
   g_option_context_set_ignore_unknown_options (context, TRUE);
   g_option_context_set_help_enabled (context, FALSE);
   g_option_context_add_main_entries (context, entries, NULL);
-  g_option_context_add_group (context, gir_group);
+  g_option_context_add_group (context, g_steal_pointer (&gir_group));
   g_option_context_parse (context, argc, argv, NULL);
 }