class UnitDiff

def massage(data)
  count = 0
  # 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