auditreduce: Solaris compat -ofile= option

[Christian S.J. Peron]

All,

I have modified our (OpenBSM's) version of auditreduce to be 
functionally equivalent (I hope) to the Solaris auditreduce with regard 
to processing pathnames.  Here is the patch:

http://people.freebsd.org/~csjp/auditreduce.c.1159024099.diff

The change basically entails adding support for regular expressions 
(comma delimited regexps) with the option to exclude things from 
searches. I also added support to allow the search patterns to have 
commas in them (by escaping them). Anyway, feedback/review would be 
great! I would love to get this submitted in time for the FreeBSD 6.2 
release cycle.

-- 
Christian S.J. Peron
csjp at FreeBSD.ORG
FreeBSD Committer
FreeBSD Security Team