[gnome-sudoku/vala-port] Sudoku: use Vala's built-in support for GVariants

[Michael Catanzaro <mcatanzaro src gnome org>]

commit aa8ee0d50557e60c2ec0f68eff883c587e493ca8
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu May 8 11:54:20 2014 -0500

    Sudoku: use Vala's built-in support for GVariants

 src/gnome-sudoku.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gnome-sudoku.vala b/src/gnome-sudoku.vala
index 9d27713..72da433 100644
--- a/src/gnome-sudoku.vala
+++ b/src/gnome-sudoku.vala
@@ -463,13 +463,13 @@ public class Sudoku : Gtk.Application
     public void possible_numbers_cb (SimpleAction action)
     {
         view.show_possibilities = !view.show_possibilities;
-        action.set_state (new Variant.boolean (view.show_possibilities));
+        action.set_state (view.show_possibilities);
     }
 
     public void unfillable_squares_cb (SimpleAction action)
     {
         view.show_warnings = !view.show_warnings;
-        action.set_state (new Variant.boolean (view.show_warnings));
+        action.set_state (view.show_warnings);
     }
 
     public void quit_cb ()