rake_tasks.rb in rollbar-2.9.0

- old
+ new

@@ -1,5 +1,6 @@
 require 'rollbar'
+require 'logger'
 
 namespace :rollbar do
   desc "Verify your gem installation by sending a test exception to Rollbar"
   task :test => [:environment] do
     Rails.logger = defined?(ActiveSupport::TaggedLogging) ?