We have an Approved Scanning Vendor (ASV) scanning our site for PCI compliance.  They scan daily.  They try to break the web app in may ways.  Some of these methods cause entries into the System Log.  The System Log gets filled quite quickly with errors that really don't matter so much that I don't even try to review what is there.  It would be nice to be able to keep these entries from getting recorded or maybe add some type of filtering to the System Log.  If the System Log also recorded the IP address that would be a useful filter for me since the ASV uses the same IP addresses all the time.