Noisy make -j output

[Kris Kennaway]

After a fresh buildworld on a system last built in November:

hydra2# make buildworld -j8 -s
--- upgrade_checks ---
--- make ---
--------------------------------------------------------------
 >>> Building an up-to-date make(1)
--------------------------------------------------------------
--- buildworld ---
--- buildworld_prologue ---
--------------------------------------------------------------
 >>> World build started on Sat Jan 24 15:59:14 UTC 2009
--------------------------------------------------------------
--- _worldtmp ---
--------------------------------------------------------------
 >>> Rebuilding the temporary build tree
--------------------------------------------------------------
[...]

Why the extra-spammy output now?

Kris