[dia] Fix return value declaration of dia_layer_widget_get_type()

[Hans Breuer <hans src gnome org>]

commit 6e0698b31ab492021498d403adc9e2e6a41c56f0
Author: Hans Breuer <hans breuer org>
Date:   Tue Oct 2 20:57:36 2012 +0200

    Fix return value declaration of dia_layer_widget_get_type()

 app/layer_dialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/layer_dialog.c b/app/layer_dialog.c
index 556cd4a..4ffa4b9 100644
--- a/app/layer_dialog.c
+++ b/app/layer_dialog.c
@@ -89,7 +89,7 @@ struct _DiaLayerWidgetClass
   GtkListItemClass parent_class;
 };
 
-GtkType    dia_layer_widget_get_type(void);
+GType dia_layer_widget_get_type(void);
 
 struct LayerDialog {
   GtkWidget *dialog;