syslog spam from nslookup

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

recentish current spams syslog on each invocation of nslookup:

Jun 27 18:48:53 hd32 nslookup: setting maxthreads to 4 from 128
Jun 27 18:48:53 hd32 nslookup: isc_hp_new: max_hps=1 max_threads=4
Jun 27 18:49:08 hd32 syslogd[305]: last message repeated 3 times

Looks like Christos added this to debug some problem (in bind itself,
I guess), but I'd say unconditional LOG_ERR is way too verbose for it
given that this code is used not just by bind itself.  Please, can we
tune it down?

-uwe