Use printf, not printf_nolog, in lockdebug dumps.

Otherwise we get no diagnostic information in crash dumps or dmesg,
which really puts a damper on the utility of lockdebug.

(If there's a reason for printf_nolog instead of printf, it should be
documented in comments here, and it had better be a pretty good
reason for destroying the diagnostic information that is half the
point of lockdebug.)

(riastradh)