Was there such an option in OS 9? If there is would repairing them using the OS 9 utility mess up OS 10 at all? Or does OS 10 repair permissions for OS 9 files already? Or would you ever have to repair permission at all for OS9?
Permissions repair compares the developer specified permissions in the BOM archives in /Library/Receipts/ to those of the installed files/directories on the disk.
Verify simply checks and reports instances that differ, whereas repair checks and repairs differences.