tasks/db.rake in slack-ruby-bot-server-0.6.1 vs tasks/db.rake in slack-ruby-bot-server-0.7.0

@@ -1,8 +1,8 @@
 namespace :db do
   def logger
     @logger ||= begin
-      $stdout.sync = true
+      STDOUT.sync = true
       Logger.new(STDOUT)
     end
   end
 
   namespace :heroku do