# File lib/ruby-debug/commands/jump.rb, line 62
      def help(cmd)
        %{
          j[ump] line\tjump to line number (absolute)
          j[ump] -line\tjump back to line (relative)
          j[ump] +line\tjump ahead to line (relative)

          Change the next line of code to be executed.
         }
     end