# File lib/rake.rb, line 1681
1681:     def help
1682:       usage
1683:       puts
1684:       puts "Options are ..."
1685:       puts
1686:       OPTIONS.sort.each do |long, short, mode, desc|
1687:         if mode == GetoptLong::REQUIRED_ARGUMENT
1688:           if desc =~ /\b([A-Z]{2,})\b/
1689:             long = long + "=#{$1}"
1690:           end
1691:         end
1692:         printf "  %-20s (%s)\n", long, short
1693:         printf "      %s\n", desc
1694:       end
1695:     end