You're still using the aolserver-errors.pl Perl script for Watchdog? Why? I thought I contributed a Tcl proc version of that years ago. Hm, yes, I did, and at least on the Head, proc wd_errors defaults to -external_parser_p 0, which calls the wd_aolserver_errors Tcl proc rather than exec'ing aolserver-errors.pl.

Are you using the Perl script version purposely, or by accident? If by accident, I recommend trying the Tcl version instead.