I was tweaking my procmailrc today. My procmailrc recognizes a number of common pattern-based spam items and logs those into logs that I rotate on a regular basis. Anything else gets fed into a Mail::Audit-based "Sortmail" script. As I was testing a minor tweak, I noticed that the logfile for Sortmail (driven by the Mail::Audit object) wasn't getting any messages.

Long story short... I had opened the Mail::Audit logfile as "-", because I wanted it to use stdout, which in my procmailrc I had directed to the proper log.

But RJBS recently changed Mail::Audit from using the two-…