Common subdirectories: feeds/feeds_defaults and sites/all/modules/feeds/feeds_defaults
diff -uP feeds/feeds.module sites/all/modules/feeds/feeds.module
--- feeds/feeds.module	2010-04-12 03:21:07.000000000 +0200
+++ sites/all/modules/feeds/feeds.module	2010-04-22 11:46:47.000000000 +0200
@@ -700,7 +700,7 @@
   if ($class = ctools_plugin_load_class('feeds', 'plugins', $plugin, 'handler')) {
     return FeedsConfigurable::instance($class, $id);
   }
-  drupal_set_message(t('Missing Feeds plugin. Check whether all required libraries and modules are installed properly.'), 'warning');
+  drupal_set_message(t('Missing Feeds plugin %plugin defined in !url. Check whether all required libraries and modules are installed properly.', array( '%plugin' => $plugin, '!url' => l($id, 'admin/build/feeds/edit/' . $id))), 'warning');
   $class = ctools_plugin_load_class('feeds', 'plugins', 'FeedsMissingPlugin', 'handler');
   return FeedsConfigurable::instance($class, $id);
 }
Common subdirectories: feeds/feeds_ui and sites/all/modules/feeds/feeds_ui
Common subdirectories: feeds/includes and sites/all/modules/feeds/includes
Common subdirectories: feeds/libraries and sites/all/modules/feeds/libraries
Common subdirectories: feeds/mappers and sites/all/modules/feeds/mappers
Common subdirectories: feeds/plugins and sites/all/modules/feeds/plugins
Common subdirectories: feeds/.svn and sites/all/modules/feeds/.svn
Common subdirectories: feeds/tests and sites/all/modules/feeds/tests
Common subdirectories: feeds/views and sites/all/modules/feeds/views