[gnome-sudoku] Fix a whitespace mistake

[Michael Catanzaro <mcatanzaro src gnome org>]

commit ccaf879fdf53ea4fbbec3281948317286e7dc25b
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu Oct 9 20:53:36 2014 -0500

    Fix a whitespace mistake

 src/print-dialog.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/print-dialog.vala b/src/print-dialog.vala
index cb0e58e..6029452 100644
--- a/src/print-dialog.vala
+++ b/src/print-dialog.vala
@@ -77,7 +77,7 @@ public class PrintDialog : Gtk.Dialog
     {
         // The spinner still has a floating reference if it wasn't added to the header bar.
         if (use_header_bar != 1)
-            spinner.destroy();
+            spinner.destroy ();
     }
 
     private void wrap_adjustment (string key_name, Gtk.Adjustment action)