[gnome-chess] Use the correct ratio character for the time label

[Michael Catanzaro <mcatanzaro src gnome org>]

commit da695c6cc43db4c52a4410aa2d8e743811cef949
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Mar 23 23:21:50 2014 -0500

    Use the correct ratio character for the time label
    
    https://bugzilla.gnome.org/show_bug.cgi?id=726954

 src/gnome-chess.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gnome-chess.vala b/src/gnome-chess.vala
index cfae17e..6a460e3 100644
--- a/src/gnome-chess.vala
+++ b/src/gnome-chess.vala
@@ -1428,9 +1428,9 @@ public class Application : Gtk.Application
             time = game.clock.black_initial_seconds - game.clock.black_seconds_used;
 
         if (time >= 60)
-            return "%d:%02d".printf (time / 60, time % 60);
+            return "%d∶%02d".printf (time / 60, time % 60);
         else
-            return ":%02d".printf (time);
+            return "∶%02d".printf (time);
     }
 
     private void draw_time (Gtk.Widget widget, Cairo.Context c, string text, double[] fg, double[] bg)