[four-in-a-row] Trivial: use en dash to indicate a range

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 9218eeab58115459bc474903ae85e02679c97df0
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Jan 20 17:38:27 2014 -0600

    Trivial: use en dash to indicate a range

 src/main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/main.c b/src/main.c
index cb5140a..493a2c8 100644
--- a/src/main.c
+++ b/src/main.c
@@ -822,7 +822,7 @@ on_help_about (GtkAction * action, gpointer data)
                         "name", _(APPNAME_LONG),
                         "version", VERSION,
                         "copyright",
-                        "Copyright \xc2\xa9 1999-2008, Tim Musson and David Neary",
+                        "Copyright © 1999–2008, Tim Musson and David Neary",
                         "license-type", GTK_LICENSE_GPL_2_0, "comments",
                         _("Connect four in a row to win.\n\nFour-in-a-row is a part of GNOME Games."),
                         "authors", authors, "documenters", documenters,