Traceback (most recent call last):
  File "addmissing.py", line 223, in <module>
    main()
  File "addmissing.py", line 183, in main
    local_args = pywikibot.handle_args(args)
  File "/shared/pywikipedia/core/pywikibot/bot.py", line 954, in handle_args
    writeToCommandLogFile()
  File "/shared/pywikipedia/core/pywikibot/bot.py", line 1128, in writeToCommandLogFile
    command_log_file.write(s + os.linesep)
  File "/usr/lib/python3.4/codecs.py", line 711, in write
    return self.writer.write(data)
  File "/usr/lib/python3.4/codecs.py", line 368, in write
    data, consumed = self.encode(object, self.errors)
UnicodeEncodeError: 'utf-8' codec can't encode character '\udcc5' in position 67: surrogates not allowed
CRITICAL: Closing network session.