# File lib/sup/modes/edit-message-mode.rb, line 285
  def make_lines header, things
    case things
    when nil, []
      [header + " "]
    when String
      [header + " " + things]
    else
      if things.empty?
        [header]
      else
        things.map_with_index do |name, i|
          raise "an array: #{name.inspect} (things #{things.inspect})" if Array === name
          if i == 0
            header + " " + name
          else
            (" " * (header.display_length + 1)) + name
          end + (i == things.length - 1 ? "" : ",")
        end
      end
    end
  end