scanlogfiles crashed with UnicodeDecodeError

[philippeowagner]

python manage.py scanlogfiles

Scanning logfiles...Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/..../my/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line
    utility.execute()
  File "/..../my/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/..../my/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/..../my/lib/python2.7/site-packages/django/core/management/base.py", line 232, in execute
    output = self.handle(*args, **options)
  File "/..../my/src/alogator/alogator/management/commands/scanlogfiles.py", line 10, in handle
    logWatcher()
  File "/..../my/src/alogator/alogator/logwatch.py", line 34, in logWatcher
    analyzeFile(logFileObj)
  File "/..../my/src/alogator/alogator/logwatch.py", line 69, in analyzeFile
    readTail(logfile, logFileObj)
  File "/..../my/src/alogator/alogator/logwatch.py", line 123, in readTail
    character = logfile.read(1)
  File "/..../my/lib/python2.7/codecs.py", line 671, in read
    return self.reader.read(size)
  File "/..../my/lib/python2.7/codecs.py", line 477, in read
    newchars, decodedbytes = self.decode(data, self.errors)
UnicodeDecodeError: 'utf8' codec can't decode byte 0x99 in position 0: invalid start byte