minor changes from aaronw's review

mediagoblin/app.py

@@ -100,6 +100,8 @@ class MediaGoblinApp(object):
 
         # Check if authentication plugin is enabled and respond accordingly.
         self.auth = check_auth_enabled()
+        if not self.auth:
+            app_config['allow_comments'] = False
 
         # Set up storage systems
         self.public_store, self.queue_store = setup_storage()

mediagoblin/templates/mediagoblin/user_pages/media.html

@@ -86,7 +86,7 @@
       <p>{{ media.description_html }}</p>
     {% endautoescape %}
     {% if comments %}
-      {% if app_config['allow_comments'] and auth %}
+      {% if app_config['allow_comments'] %}
         <a
           {% if not request.user %}
             href="{{ request.urlgen('mediagoblin.auth.login') }}"