Rakefile in data_set-1.1.0 vs Rakefile in data_set-2.0.0

@@ -9,9 +9,10 @@
 
 namespace :spec do
   desc 'Clean all generated reports'
   task :clean do
     system('rm -rf spec/reports')
+    system('rm -rf spec/coverage')
   end
 
   RSpec::Core::RakeTask.new(all: :clean) do |config|
     options  = %w[--color]
     options += %w[--format documentation]