[dia] win32: export dia_option_menu_get_type

[Zander <zbrown src gnome org>]

commit 474363df8cb1f5b860c3504f46d6b6b4093eefe7
Author: Zander Brown <zbrown gnome org>
Date:   Sun Oct 13 00:49:28 2019 +0100

    win32: export dia_option_menu_get_type

 lib/libdia.def | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/lib/libdia.def b/lib/libdia.def
index 0e27c4df..8781aebb 100644
--- a/lib/libdia.def
+++ b/lib/libdia.def
@@ -864,6 +864,7 @@ EXPORTS
  dia_matrix_set_rotate_around
  dia_matrix_multiply
 
+ dia_option_menu_get_type
  dia_option_menu_add_item
  dia_option_menu_get_active
  dia_option_menu_new