FIX: Use imported getURL (#73)

FIX: Use imported getURL (#73)

diff --git a/assets/javascripts/discourse/components/upgrade-notice.js.es6 b/assets/javascripts/discourse/components/upgrade-notice.js.es6
index 971973e..55af4dd 100644
--- a/assets/javascripts/discourse/components/upgrade-notice.js.es6
+++ b/assets/javascripts/discourse/components/upgrade-notice.js.es6
@@ -1,6 +1,8 @@
+import getURL from "discourse-common/lib/get-url";
+
 export default Ember.Component.extend({
   tagName: "tr",
   href: function() {
-    return Discourse.getAppURL("/admin/upgrade");
+    return getURL("/admin/upgrade");
   }.property()
 });

GitHub sha: d4ea0296

This commit appears in #73 which was merged by SamSaffron.