flushing files to the disk

Hi,

  I need to flush my log files. I have experienced Bro not flushing
the files when being stop (Control C). I've read in the manual that there
was
a flush_all() function and I tried to use it but it does not work
(unrecognized
variable). Does it need some special setting to work.

I'm using Bro version 0.6.

Thanks in advance for the futur help.

Magnus Anderssen