[dia] Updated copyright years. It's (c) 1998-2011, actually.

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 98273fce952638bc1ce84517ef40e98251aa53ea
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sat Jun 4 17:06:35 2011 +0400

    Updated copyright years. It's (c) 1998-2011, actually.

 app/commands.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/commands.c b/app/commands.c
index c9481f3..328cfad 100644
--- a/app/commands.c
+++ b/app/commands.c
@@ -953,7 +953,7 @@ help_about_callback (GtkAction *action)
         "name", "Dia",
 	"version", VERSION,
 	"comments", _("A program for drawing structured diagrams."),
-	"copyright", "(C) 1998-2009 The Free Software Foundation and the authors",
+	"copyright", "(C) 1998-2011 The Free Software Foundation and the authors",
 	"website", "http://live.gnome.org/Dia";,
 	"authors", authors,
 	"documenters", documentors,