[gnome-sudoku/arnaudb/event-controller-key: 1/2] Replace deprecated method.

[Arnaud B. <arnaudb src gnome org>]

commit b9dc29c46988537bb552b3d3c84f7a2ba84c992a
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Wed Apr 1 19:26:22 2020 +0200

    Replace deprecated method.

 src/gnome-sudoku.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/gnome-sudoku.vala b/src/gnome-sudoku.vala
index 565c5c6..979edb0 100644
--- a/src/gnome-sudoku.vala
+++ b/src/gnome-sudoku.vala
@@ -583,7 +583,7 @@ public class Sudoku : Gtk.Application
     {
         try
         {
-            show_uri (window.get_screen (), "help:gnome-sudoku", get_current_event_time ());
+            show_uri_on_window (window, "help:gnome-sudoku", get_current_event_time ());
         }
         catch (GLib.Error e)
         {