[gnome-sudoku] appdata: update license metadata

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 57a81d0aff403813e8b480486a5c787cb410a436
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun May 11 18:37:56 2014 -0500

    appdata: update license metadata

 data/gnome-sudoku.appdata.xml.in |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/data/gnome-sudoku.appdata.xml.in b/data/gnome-sudoku.appdata.xml.in
index cbae4fa..26cc273 100644
--- a/data/gnome-sudoku.appdata.xml.in
+++ b/data/gnome-sudoku.appdata.xml.in
@@ -2,7 +2,8 @@
 <!-- Copyright 2013 Michael Catanzaro and contributors -->
 <application>
   <id type="desktop">gnome-sudoku.desktop</id>
-  <licence>CC0</licence>
+  <metadata_licence>CC0-1.0</metadata_licence>
+  <project_license>GPL-2.0+ and CC-BY-SA-3.0</project_license>
   <_name>GNOME Sudoku</_name>
   <description>
     <_p>