Okay, re-reading the bug reports, from here and other places, it involves mounting an AFP-mounted home directory. So an average user mount wouldn't log to syslog, but if your home directory was set for a remote mount, or a loopback afs mount, it would be. I'd need a lion box to properly test on; I'd given up on OS X a few years back because I got tired of Apple's idea of Just Fucking Works.