Rakefile in ripper_ruby_parser-0.0.4 vs Rakefile in ripper_ruby_parser-0.0.5

@@ -3,16 +3,16 @@
 namespace :test do
 
   Rake::TestTask.new(:unit) do |t|
     t.libs = ['lib']
     t.test_files = FileList['test/unit/*_test.rb']
-    t.ruby_opts += ["-w"]
+    t.warning = true
   end
 
   Rake::TestTask.new(:end_to_end) do |t|
     t.libs = ['lib']
     t.test_files = FileList['test/end_to_end/*_test.rb']
-    t.ruby_opts += ["-w"]
+    t.warning = true
   end
 
   task :run => [:unit, :end_to_end]
 
 end