message: fixed the last return statement to return nothing if the data cannot be decoded
diff: @@ -106,7 +106,8 @@ class FileDecoder(decoder.Decoder):
  #CANCEL Packets have no data
  return file_data.CancelPacketData(packetType, seqID)
  - return file_data.FileData(packetType, seqID)
  + #The data was not determined to be any of the packet types so return none
  + return None
  if __name__ == "__main__":
  pass
  