doctor_child

# File lib/rubygems/doctor.rb, line 102
  def doctor_child(sub_directory, extension) # :nodoc:
    directory = File.join(@gem_repository, sub_directory)

    Dir.entries(directory).sort.each do |ent|
      next if ent == "." || ent == ".."

      child = File.join(directory, ent)
      next unless File.exist?(child)

      basename = File.basename(child, extension)
      next if installed_specs.include? basename
      next if /^rubygems-\d/ =~ basename
      next if 'specifications' == sub_directory and 'default' == basename

      type = File.directory?(child) ? 'directory' : 'file'

      action = if @dry_run
                 'Extra'
               else
                 FileUtils.rm_r(child)
                 'Removed'
               end

      say "#{action} #{type} #{sub_directory}/#{File.basename(child)}"
    end
  rescue Errno::ENOENT
    # ignore
  end