[perl-Glib-Object-Introspection] Fix a slight stack handling mistake

[Torsten SchÃnfeld <tsch src gnome org>]

commit aed855dd724d5cd4b4b40ce2c0899da244a6771e
Author: Torsten SchÃnfeld <kaffeetisch gmx de>
Date:   Wed Jan 23 21:06:11 2013 +0100

    Fix a slight stack handling mistake

 GObjectIntrospection.xs |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/GObjectIntrospection.xs b/GObjectIntrospection.xs
index 6b311e4..e030f49 100644
--- a/GObjectIntrospection.xs
+++ b/GObjectIntrospection.xs
@@ -473,7 +473,7 @@ _register_types (class, namespace, package)
 	gperl_hv_take_sv (namespaced_functions, "", 0,
 	                  newRV_noinc ((SV *) global_functions));
 
-	EXTEND (SP, 4);
+	EXTEND (SP, 5);
 	PUSHs (sv_2mortal (newRV_noinc ((SV *) namespaced_functions)));
 	PUSHs (sv_2mortal (newRV_noinc ((SV *) constants)));
 	PUSHs (sv_2mortal (newRV_noinc ((SV *) fields)));