Who is kirby-cat?

[Nameci]

Who is and what is kirby-cat? I have this on my logs;

Aug 5 03:24:54 kirby-cat com.apple.kextcache[187]: /: no supported helper partitions to update.
Aug 5 03:24:54 kirby-cat kextd[10]: updated kernel boot caches
Aug 5 03:24:54 kirby-cat com.apple.kextd[10]: / is still busy, delaying reboot.
Aug 5 03:24:54 kirby-cat com.apple.kextcache[186]: Lock acquired; proceeding.
Aug 5 03:24:54 kirby-cat com.apple.kextcache[186]: /: no supported helper partitions to update.
Aug 5 03:24:54 kirby-cat kextd[10]: updated kernel boot caches
Aug 5 03:24:54 kirby-cat kextd[10]: unblocking shutdown
Aug 5 03:24:54 kirby-cat shutdown[184]: halt by Nameci:
Aug 5 03:24:54 kirby-cat shutdown[184]: SHUTDOWN_TIME: 1280949894 783870
Aug 5 03:24:54 kirby-cat mDNSResponder[32]: mDNSResponder mDNSResponder-214.3.2 (May 14 2010 15:29:49) stopping
Aug 5 03:24:54 kirby-cat DirectoryService[15]: BUG in libdispatch: 10F569 - 1960 - 0x10004004
Aug 5 03:24:54 kirby-cat WindowServer[58]: hidd died. Reestablishing connection.
Aug 5 03:24:54 kirby-cat WindowServer[58]: bootstrap_look_ip failed: Unknown service name

The same thing I have seen on my terminal prompt?

[spalek83]

a username?