Please help with ACL "found but not expected," permissions, (and yes I've read /kb/TS1448)

Hi, I am getting this report from Disk Utility when I repair permissions.

They keep coming up even if I run repair permissions multiple times.

Repairing permissions for “SSD ML Clone 928”

ACL found but not expected on “private/var/root/Library”

Repaired “private/var/root/Library”

ACL found but not expected on “private/var/root/Library/Preferences”

Repaired “private/var/root/Library/Preferences”

Permissions repair complete

And, yes I have read Apples Support Page,

"Mac OS X: Disk Utility's Repair Disk Permissions messages that you can safely ignore,"

at:

http://support.apple.com/kb/TS1448

And, these particular ACL's are not listed on that page, as being ones that can be safely ignored.

Can anyone tell me for certain if this is anything I should be worried about, (or not), and if it's a problem, what I can do about it?

Thanks in advance!