Log Message:
Update bind910 to 9.10.4pl5 (BIND 9.10.4-P5), including security fixes.

	--- 9.10.4-P5 released ---

4530.	[bug]		Change 4489 broke the handling of CNAME -> DNAME
			in responses resulting in SERVFAIL being returned.
			[RT #43779]

4528.	[bug]		Only set the flag bits for the i/o we are waiting
			for on EPOLLERR or EPOLLHUP. [RT #43617]

4519.	[port]		win32: handle ERROR_MORE_DATA. [RT #43534]

4517.	[security]	Named could mishandle authority sections that were
			missing RRSIGs triggering an assertion failure.
			(CVE-2016-9444) [RT # 43632]

4510.	[security]	Named mishandled some responses where covering RRSIG
			records are returned without the requested data
			resulting in a assertion failure. (CVE-2016-9147)
			[RT #43548]

4508.	[security]	Named incorrectly tried to cache TKEY records which
			could trigger a assertion failure when there was
			a class mismatch. (CVE-2016-9131) [RT #43522]