[otrs] Added Postmaster filter, now getting error from PostMasterPOP3.pl?

Howdy, Running: OTRS 2.0.2, perl 5.8.7 I just added a Postmaster filter to stick mail with an X-Spam-Flag header into a Spam queue. Very simple, one header in each of the match and add sections. Now when PostMasterPOP3.pl runs and the filter matches, I get this stderr output: Use of uninitialized value in sprintf at /usr/local/lib/perl5/5.8.7/mach/Sys/Syslog.pm line 321. I'm unsure if this is a bug or something I've missed configuring. If it's a bug I'll be happy to submit a bug report, but wanted to check here first. Anyone seen this before? Thanks, Bryan