Update bind99 to 9.9.9pl2 (BIND 9.9.9-P2).

--- 9.9.9-P2 released ---

4406. [bug] getrrsetbyname with a non absolute name could
trigger an infinite recursion bug in lwresd
and named with lwres configured if when combined
with a search list entry the resulting name is
too long. (CVE-2016-2775) [RT #42694]

4405. [bug] Change 4342 introduced a regression where you could
not remove a delegation in a NSEC3 signed zone using
OPTOUT via nsupdate. [RT #42702]

4387. [bug] Change 4336 was not complete leading to SERVFAIL
being return as NS records expired. [RT #42683]

--- 9.9.9-P1 released ---

4366. [bug] Address race condition when updating rbtnode bit
fields. [RT #42379]

4363. [port] win32: Disable explicit triggering UAC when running
BINDInstall.

(taca)