[glibmm] Gio::SimpleAction: set_enabled(): Add default parameter value.

[Murray Cumming <murrayc src gnome org>]

commit 706f6d313a964f5b7340113d3081f41685eb16d5
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Jul 22 14:27:32 2013 +0200

    Gio::SimpleAction: set_enabled(): Add default parameter value.

 gio/src/simpleaction.hg |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gio/src/simpleaction.hg b/gio/src/simpleaction.hg
index 3fbbdf1..a487b7c 100644
--- a/gio/src/simpleaction.hg
+++ b/gio/src/simpleaction.hg
@@ -62,7 +62,7 @@ public:
   _WRAP_METHOD_DOCS_ONLY(g_simple_action_new_stateful)
   _WRAP_CREATE(const Glib::ustring& name, const Glib::VariantType& parameter_type, const Glib::VariantBase& 
state)
 
-  _WRAP_METHOD(void set_enabled(bool enabled), g_simple_action_set_enabled)
+  _WRAP_METHOD(void set_enabled(bool enabled = true), g_simple_action_set_enabled)
   _WRAP_METHOD(void set_state(const Glib::VariantBase& value), g_simple_action_set_state)
 
   _WRAP_PROPERTY("enabled", bool)