[gnome-calculator] appdata: fix spelling of metadata_license tag

[Michael Catanzaro <mcatanzaro src gnome org>]

commit ec2017aa8275b62e99d3e842559398c93deff375
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue May 20 21:11:32 2014 -0500

    appdata: fix spelling of metadata_license tag

 data/gnome-calculator.appdata.xml.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/gnome-calculator.appdata.xml.in b/data/gnome-calculator.appdata.xml.in
index bbd43da..935c468 100644
--- a/data/gnome-calculator.appdata.xml.in
+++ b/data/gnome-calculator.appdata.xml.in
@@ -2,7 +2,7 @@
 <!-- Copyright 2013 Michael Catanzaro and contributors -->
 <application>
   <id type="desktop">gnome-calculator.desktop</id>
-  <metadata_licence>CC0-1.0</metadata_licence>
+  <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-2.0+ and CC-BY-SA-3.0</project_license>
   <_name>GNOME Calculator</_name>
   <description>