[iagno] Update copyright infos in about dialog.

[Arnaud B. <arnaudb src gnome org>]

commit b7582ab0c0372e98b021e7fdabece4b15dd58aef
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Jan 8 09:19:46 2019 +0100

    Update copyright infos in about dialog.
    
    Happy new year everybody.

 src/iagno.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/iagno.vala b/src/iagno.vala
index 5ddfe0a..601675e 100644
--- a/src/iagno.vala
+++ b/src/iagno.vala
@@ -273,7 +273,7 @@ public class Iagno : Gtk.Application
                            "copyright",
                              "Copyright © 1998–2008 Ian Peters\n"+
                              "Copyright © 2013–2015 Michael Catanzaro\n"+
-                             "Copyright © 2014–2015 Arnaud Bonatti",
+                             "Copyright © 2014–2019 Arnaud Bonatti",
                            "license-type", License.GPL_3_0,
                            "comments",
                              _("A disk flipping game derived from Reversi"),