[krb5-auth-dialog: 11/15] Update copyright year

[Guido Günther <guidog src gnome org>]

commit 18944218482db9b35e6a07856f0b9048c8c49ed3
Author: Guido Günther <agx sigxcpu org>
Date:   Sat Feb 6 19:04:26 2021 +0100

    Update copyright year

 src/ka-tools.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/ka-tools.c b/src/ka-tools.c
index 1dbc94a..2a4c1fe 100644
--- a/src/ka-tools.c
+++ b/src/ka-tools.c
@@ -74,7 +74,7 @@ ka_show_about (KaApplet *applet)
                            "logo-icon-name", "krb-valid-ticket",
                            "copyright",
                            "Copyright (C) 2004,2005,2006 Red Hat, Inc.,\n"
-                           "2008-2011,2014 Guido Günther",
+                           "2008-2011,2014,2021 Guido Günther",
                            "website-label", PACKAGE " website",
                            "website",
                            "https://honk.sigxcpu.org/piki/projects/krb5-auth-dialog/";,