def internal_pipes(global_opt)
      internals = [:query, :sort, :reverse_sort, :pipes]
      internals.delete(:pipes) if pipes_to_process(global_opt).any? {|e| pipe(e)[:solo] }
      internals
    end
def internal_pipes(global_opt)
      internals = [:query, :sort, :reverse_sort, :pipes]
      internals.delete(:pipes) if pipes_to_process(global_opt).any? {|e| pipe(e)[:solo] }
      internals
    end
:stopdoc: