[lightsoff] About dialog: use GtkLicense

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 76785959dd3271708c66887d64755e35630d26e4
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Nov 18 23:38:26 2013 -0600

    About dialog: use GtkLicense

 src/lightsoff.vala |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
---
diff --git a/src/lightsoff.vala b/src/lightsoff.vala
index 1084978..dd85818 100644
--- a/src/lightsoff.vala
+++ b/src/lightsoff.vala
@@ -151,8 +151,6 @@ public class LightsOff : Gtk.Application
             "Eric Baudais",
             null
         };
-        
-        var license = "Lights Off is free software; you can redistribute it and/or modify it under the terms 
of the GNU General Public License as published by the Free Software Foundation; either version 2 of the 
License, or (at your option) any later version.\n\nLights Off is distributed in the hope that it will be 
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
PARTICULAR PURPOSE. See the GNU General Public License for more details.\n\nYou should have received a copy 
of the GNU General Public License along with Lights Off; if not, write to the Free Software Foundation, Inc., 
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA";
 
         Gtk.show_about_dialog (window,
                                "program-name", _("Lights Off"),
@@ -160,8 +158,7 @@ public class LightsOff : Gtk.Application
                                "comments",
                                _("Turn off all the lights\n\nLights Off is a part of GNOME Games."),
                                "copyright", "Copyright © 2009 Tim Horton",
-                               "license", license,
-                               "wrap-license", true,
+                               "license-type", Gtk.License.GPL_2_0,
                                "authors", authors,
                                "artists", artists,
                                "documenters", documenters,