"Enabled/Disabled automatic stack shots because audio IO is active" console logs since 10.8.4 update

Console log is filled with these messages, related to the process coreaudiod. I have noticed other people have recently had the same messages on the forums. Running 15'' MB Pro 8,2 (late 2011) with 10.8.4...all software updated. This started after the latest ML update. There is no problem with my internal speakers and audio is functioning fine...just one of those console log annoyances...not a huge issue, but any insight would be appreciated. Thanks.