[core] Strip failure. multiline messages?

[Stefano Rivera]

2009-04-29 16:24:44,471 ERROR core.dispatcher: Exception occured in Strip processor of core plugin
Traceback (most recent call last):
  File "/home/stefanor/projects/ibid/dc-source/ibid/core.py", line 22, in _process
    processor.process(event)
  File "/home/stefanor/projects/ibid/dc-source/ibid/plugins/__init__.py", line 57, in process
    method(event)
  File "/home/stefanor/projects/ibid/dc-source/ibid/plugins/core.py", line 47, in handle_strip
    event.message = self.pattern.search(event.message).group(1)
AttributeError: 'NoneType' object has no attribute 'group'

Believed to be caused by multi-line messages in DC.