[gedit] About dialog: update copyright for 2022

[Sébastien Wilmet <swilmet src gnome org>]

commit 6048e6911ed549f3c5493224dfd1cac42fbae9a3
Author: Sébastien Wilmet <swilmet informatique-libre be>
Date:   Sat Jul 16 18:46:14 2022 +0200

    About dialog: update copyright for 2022

 gedit/gedit-commands-help.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gedit/gedit-commands-help.c b/gedit/gedit-commands-help.c
index 0e3dd573c..34e580506 100644
--- a/gedit/gedit-commands-help.c
+++ b/gedit/gedit-commands-help.c
@@ -108,7 +108,7 @@ _gedit_cmd_help_about (GeditWindow *window)
                               "program-name", "gedit",
                               "authors", authors,
                               "comments", _("gedit is a small and lightweight text editor for the GNOME 
desktop"),
-                              "copyright", "Copyright 1998-2020 – the gedit team",
+                              "copyright", "Copyright 1998-2022 – the gedit team",
                               "license-type", GTK_LICENSE_GPL_2_0,
                               "logo-icon-name", "org.gnome.gedit",
                               "documenters", documenters,