add_PLATFORMS

# File lib/rubygems/request_set/lockfile.rb, line 198
  def add_PLATFORMS out # :nodoc:
    out << "PLATFORMS"

    platforms = @requests.map { |request| request.spec.platform }.uniq

    platforms = platforms.sort_by { |platform| platform.to_s }

    platforms.sort.each do |platform|
      out << "  #{platform}"
    end

    out << nil
  end