Rakefile in twitter-text-2.1.0 vs Rakefile in twitter-text-3.0.0

@@ -22,10 +22,10 @@
 
 namespace :test do
   namespace :conformance do
     desc "Run conformance test suite"
     task :run => ['prebuild'] do
-      ruby '-rubygems', "test/conformance_test.rb"
+      ruby "test/conformance_test.rb"
     end
   end
 
   desc "Run conformance test suite"
   task :conformance => ['conformance:run'] do