These are innocuous and can be safely ignored. They will recur every time you repair permissions. See Mac OS X- Disk Utility's Repair Disk Permissions messages that you can safely ignore.
Last couple of days I have had an issue with Safari saying the following : The error is: “cannot decode raw data” (NSURLErrorDomain:-1015). I have reset safari and in seems to go away but it comes back. On a whim I ran my disk permissions via disk utility and noticed a whole list of stuff it fixed with the last line being: Warning: SUID file “System/Library/Core Services/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” then cant be repaired. I tried redownloading safari 5.0.5 to reinstall but the installer ran and said it needed 10.6.7 to install. Since im running 10.6.8 i was like ok there must be bugs popping up in 10.6.8 update finally. any help and fixes would be great . THANKS