net/bind916: update to 9.16.5

Update bind916 to 9.16.5 (BIND 9.16.5).

--- 9.16.5 released ---

5458. [bug] Prevent a theoretically possible NULL dereference caused
by a data race between zone_maintenance() and
dns_zone_setview_helper(). [GL #1627]

5455. [bug] named could crash when cleaning dead nodes in
lib/dns/rbtdb.c that were being reused. [GL #1968]

5454. [bug] Address a startup crash that occurred when the server
was under load and the root zone had not yet been
loaded. [GL #1862]

5453. [bug] named crashed on shutdown when a new rndc connection was
received during shutdown. [GL #1747]

5452. [bug] The "blackhole" ACL was accidentally disabled for client
queries. [GL #1936]

5451. [func] Add 'rndc dnssec -status' command. [GL #1612]

5449. [bug] Fix a socket shutdown race in netmgr udp. [GL #1938]

5448. [bug] Fix a race condition in isc__nm_tcpdns_send().
[GL #1937]

5447. [bug] IPv6 addresses ending in "::" could break YAML
parsing. A "0" is now appended to such addresses
in YAML output from dig, mdig, delv, and dnstap-read.
[GL #1952]

5446. [bug] The validator could fail to accept a properly signed
RRset if an unsupported algorithm appeared earlier in
the DNSKEY RRset than a supported algorithm. It could
also stop if it detected a malformed public key.
[GL #1689]

5444. [bug] 'rndc dnstap -roll <value>' did not limit the number of
saved files to <value>. [GL !3728]

5443. [bug] The "primary" and "secondary" keywords, when used
as parameters for "check-names", were not
processed correctly and were being ignored. [GL #1949]

5441. [bug] ${LMDB_CFLAGS} was missing from make/includes.in.
[GL #1955]

5440. [test] Properly handle missing kyua. [GL #1950]

5439. [bug] The DS RRset returned by dns_keynode_dsset() was used in
a non-thread-safe manner. [GL #1926]

(taca)