[gnome-nibbles] About dialog: use en dashes to indicate a range

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 1addf719128b148b6bde0b167a1a572c4ecf8cdc
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Jan 20 17:55:03 2014 -0600

    About dialog: use en dashes to indicate a range

 src/main.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/main.c b/src/main.c
index f103eba..c0ee8f3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -222,8 +222,8 @@ about_activated (GSimpleAction *action,
        "program-name", _("Nibbles"),
        "version", VERSION,
        "copyright",
-       "Copyright \xc2\xa9 1999-2008 Sean MacIsaac, Ian Peters, Andreas Røsdal\n"
-       "Copyright \xc2\xa9 2009 Guillaume Beland",
+       "Copyright © 1999–2008 Sean MacIsaac, Ian Peters, Andreas Røsdal\n"
+       "Copyright © 2009 Guillaume Beland",
        "license-type", GTK_LICENSE_GPL_2_0, 
        "comments", _("A worm game for GNOME\n\nNibbles is a part of GNOME Games."),
        "authors", authors,