message: Catch unicode decode error in redex.py
  Summary: Sometimes printed data is not proper unicode.
diff: @@ -206,11 +206,15 @@ def run_and_stream_stderr(args, env, pass_fds):
  err_out = []
  # Copy and stash the output.
  for line in proc.stderr:
  + try:
  str_line = line.decode(sys.stdout.encoding)
  + except UnicodeDecodeError:
  + str_line = "<UnicodeDecodeError>\n"
  sys.stderr.write(str_line)
  err_out.append(str_line)
  if len(err_out) > 1000:
  err_out = err_out[100:]
  +
  returncode = proc.wait()
  return (returncode, err_out)
  