in_twitter.rb in fluent-plugin-twitter-0.5.3

- old
+ new

@@ -1,4 +1,6 @@
+require "fluent/input"
+
 module Fluent
   class TwitterInput < Fluent::Input
     TIMELINE_TYPE = %w(userstream sampling location tracking)
     OUTPUT_FORMAT_TYPE = %w(nest flat simple)
     Plugin.register_input('twitter', self)