anchor.diff:    gemspec.test_files = filter_files[metadata['test_files']]
   
     unless gemspec.files.include?('.document')
  -    gemspec.extra_rdoc_files = metadata['extra_doc_files']
  +    gemspec.extra_rdoc_files = metadata['doc_files']
     end
   
     gemspec.post_install_message = metadata['post_install_message']
  -  gemspec.requirements = metadata['requirements']
  +  gemspec.requirements         = metadata['requirements']
   
     if gemspec.respond_to?(:required_ruby_version=)
       gemspec.required_ruby_version = metadata['required_ruby_version']
  
positive.code: require 'yaml'
  
  Gem::Specification.new do |gemspec|
    root = File.dirname(__FILE__)
    lib_dir = File.join(root,'lib')
    files = if File.directory?('.git')
              `git ls-files`.split($/)
            elsif File.directory?('.hg')
              `hg manifest`.split($/)
            elsif File.directory?('.svn')
              `svn ls -R`.split($/).select { |path| File.file?(path) }
            else
              Dir['{**/}{.*,*}'].select { |path| File.file?(path) }
            end
  
    filter_files = lambda { |paths|
      case paths
  
negative.code:     gemspec.author = metadata['authors']
    end
  
    gemspec.email    = metadata['email']
    gemspec.homepage = metadata['homepage']
  
    case metadata['require_paths']
  