FIX: Use correct variable in translated string.

FIX: Use correct variable in translated string.

diff --git a/assets/javascripts/discourse/initializers/hook-invite.js.es6 b/assets/javascripts/discourse/initializers/hook-invite.js.es6
index d753d93..be8335e 100644
--- a/assets/javascripts/discourse/initializers/hook-invite.js.es6
+++ b/assets/javascripts/discourse/initializers/hook-invite.js.es6
@@ -36,7 +36,7 @@ export default {
           .then(userKeys => {
             if (!userKeys[user]) {
               bootbox.alert(
-                I18n.t("encrypt.composer.user_has_no_key", { user })
+                I18n.t("encrypt.composer.user_has_no_key", { username: user })
               );
               return Ember.RSVP.Promise.reject(user);
             }

GitHub sha: 6771c6e9