[gnome-clocks] Enhance the comment for the time format string

[Evgeny Bobkin <ebobkin src gnome org>]

commit 86d8156a7e03544c9aae782333c2af419320b3c8
Author: Evgeny Bobkin <evgen ibqn gmail com>
Date:   Mon Aug 12 14:51:21 2013 +0200

    Enhance the comment for the time format string
    
    https://bugzilla.gnome.org/show_bug.cgi?id=705305

 src/timer.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/timer.vala b/src/timer.vala
index aff05cc..72f5c4f 100644
--- a/src/timer.vala
+++ b/src/timer.vala
@@ -229,8 +229,8 @@ public class MainPanel : Gtk.Stack, Clocks.Clock {
     }
 
     private void update_countdown_label (int h, int m, int s) {
-        // Note that the format uses unicode RATIO character,
-        // which is prepended with a LTR mark
+        // Note that the format uses unicode RATIO character
+        // We also prepend the LTR mark to make sure text is always in this direction
         time_label.set_text ("%02i\xE2\x80\x8E∶%02i\xE2\x80\x8E∶%02i".printf (h, m, s));
     }