[rhythmbox] shell: update the copyright year

[Jonathan Matthew <jmatthew src gnome org>]

commit 519dba3a7b58ffe3639f712b5db0466c6a334546
Author: Jonathan Matthew <jonathan d14n org>
Date:   Tue Aug 20 12:10:00 2019 +1000

    shell: update the copyright year
    
    It turns out development didn't stop in 2016.

 shell/rb-application.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/shell/rb-application.c b/shell/rb-application.c
index 9d294aede..1dbde18d3 100644
--- a/shell/rb-application.c
+++ b/shell/rb-application.c
@@ -260,7 +260,7 @@ about_action_cb (GSimpleAction *action, GVariant *parameters, gpointer user_data
        g_object_get (app->priv->shell, "window", &window, NULL);
        gtk_show_about_dialog (GTK_WINDOW (window),
                               "version", VERSION,
-                              "copyright", "Copyright \xc2\xa9 2005 - 2016 The Rhythmbox authors\nCopyright 
\xc2\xa9 2003 - 2005 Colin Walters\nCopyright \xc2\xa9 2002, 2003 Jorn Baayen",
+                              "copyright", "Copyright \xc2\xa9 2005 - 2019 The Rhythmbox authors\nCopyright 
\xc2\xa9 2003 - 2005 Colin Walters\nCopyright \xc2\xa9 2002, 2003 Jorn Baayen",
                               "license", license_trans,
                               "website-label", _("Rhythmbox Website"),
                               "website", "https://wiki.gnome.org/Apps/Rhythmbox";,