[dconf-editor] Update copyright info.

[Arnaud B. <arnaudb src gnome org>]

commit f1ae3aea416b5cf74db39f8d82b709a14e84cca7
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Jan 1 19:21:56 2019 +0100

    Update copyright info.

 editor/dconf-window.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/editor/dconf-window.vala b/editor/dconf-window.vala
index 06b17f0..da12e9d 100644
--- a/editor/dconf-window.vala
+++ b/editor/dconf-window.vala
@@ -1091,7 +1091,7 @@ namespace AboutDialogInfos
     internal const string comments = _("A graphical viewer and editor of applications’ internal settings.");
 
     /* Translators: about dialog text */
-    internal const string copyright = _("Copyright \xc2\xa9 2010-2014 – Canonical Ltd\nCopyright \xc2\xa9 
2015-2018 – Arnaud Bonatti\nCopyright \xc2\xa9 2017-2018 – Davi da Silva Böger");
+    internal const string copyright = _("Copyright \xc2\xa9 2010-2014 – Canonical Ltd\nCopyright \xc2\xa9 
2017-2018 – Davi da Silva Böger\nCopyright \xc2\xa9 2015-2019 – Arnaud Bonatti");
 
     /* Translators: about dialog text; this string should be replaced by a text crediting yourselves and 
your translation team, or should be left empty. Do not translate literally! */
     internal const string translator_credits = _("translator-credits");