2010 iMac running 10.9.1

Ran Repair Disk Permissions and got this:

Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” has been modified and will not be repaired.

My 10.9.1 is not misbehaving -- so far as I can tell. What's up with that warning?