[pygobject] closure: silence a new compiler warning

[Christoph Reiter <creiter src gnome org>]

commit a541a916ce798cd779ed17f015f6902e66c4454c
Author: Christoph Reiter <creiter src gnome org>
Date:   Fri Aug 25 18:21:47 2017 +0200

    closure: silence a new compiler warning
    
    gcc7 has started to warn for fallthrough in switch. Prevent this
    by duplicating the default case + break.

 gi/pygi-closure.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gi/pygi-closure.c b/gi/pygi-closure.c
index 17b283f..03bd050 100644
--- a/gi/pygi-closure.c
+++ b/gi/pygi-closure.c
@@ -184,8 +184,8 @@ _pygi_closure_assign_pyobj_to_out_argument (gpointer out_arg,
                    }
                    break;
                }
-
-           /* Fall through if pointer */
+               *((gpointer *) out_arg) = arg->v_pointer;
+               break;
            default:
                *((gpointer *) out_arg) = arg->v_pointer;
                break;