# File lib/unit_diff.rb, line 251
  def massage(data)
    data = data.map { |l| '%3d) %s' % [count+=1, l] } if $l
    # unescape newlines, strip <> from entire string
    data = data.join
    data = data.gsub(/\\n/, "\n").gsub(/0x[a-f0-9]+/m, '0xXXXXXX') + "\n"
    data += "\n" unless data[-1] == ?\n
    data
  end