I'm pretty sure the repair talisman is not a vanilla object which would mean bukkit shouldn't be logging it in the first place since it doesn't even recognize that block. And just to clarify, i ment that the console is being spammed with the following phrase "Repair is active..." and/or "Player Found" This will usually increase my server logs size to a few gigabytes after about 3 hours.
And ComputerCraft objects do have a log and would usually spam the scripts in the console.