[gnome-sudoku] When pause is clicked, the game field should be hidden.

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 740f934b0731abb2462ca67ea2b2d0d7a1e8b3d9
Author: tompollok <tom pollok gmail com>
Date:   Thu Aug 11 15:25:38 2016 +0200

    When pause is clicked, the game field should be hidden.
    
    fixes #766118

 src/gnome-sudoku.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/gnome-sudoku.vala b/src/gnome-sudoku.vala
index 2c9f4d2..3a2abac 100644
--- a/src/gnome-sudoku.vala
+++ b/src/gnome-sudoku.vala
@@ -268,6 +268,8 @@ public class Sudoku : Gtk.Application
             redo_action.set_enabled (!game.is_redostack_null ());
             new_game_action.set_enabled (true);
         }
+
+        view.queue_draw ();
     }
 
     private void play_custom_game_cb ()