Rakefile in fluent-plugin-slack-0.5.0 vs Rakefile in fluent-plugin-slack-0.5.1

@@ -5,7 +5,12 @@
 Rake::TestTask.new(:test) do |test|
   test.libs << 'lib' << 'test'
   test.pattern = 'test/**/test_*.rb'
   test.verbose = true
 end
-
 task :default => :test
+
+desc 'Open an irb session preloaded with the gem library'
+task :console do
+    sh 'irb -rubygems -I lib'
+end
+task :c => :console