anchor.diff:    gemspec.licenses = metadata['license']
   
     gemspec.authors = metadata['authors']
  -  gemspec.emails = metadata['email']
  +  gemspec.email = metadata['email']
     gemspec.homepage = metadata['homepage']
   
     case metadata['require_paths']
  
positive.code: 
    unless gemspec.files.include?('.document')
      gemspec.extra_rdoc_files = expand_files[defaults[:extra_doc_files]]
    }
  
    gemspec.files = if metadata['files']
                      expand_files[metadata['files']]
  
negative.code:   gemspec.version = if metadata['version']
                        metadata['version']
                      elsif files.include?(defaults[:version_path])
                        Kernel.load(defaults[:version_path])
  
                        <%= @namespace %>::VERSION
                      end
  