message: Fix character matching
diff: @@ -52,7 +52,7 @@ class OpenOCDCMSampler(object):
  try:
  # For using nm -CS
  - if field[2] in ('t', 'T', 'w', 'W'):
  + if field[2] in (b't', b'T', b'w', b'W'):
  addr = int(field[0], 16)
  func = field[3]
  size = int(field[1], 16)
  