Log Message:
net/bind918: update to 9.18.15

	--- 9.18.15 released ---

6164.	[bug]		Set the rndc idle read timeout back to 60 seconds,
			from the netmgr default of 30 seconds, in order to
			match the behavior of 9.16 and earlier. [GL #4046]

6161.	[bug]		Fix log file rotation when using absolute path as
			file. [GL #3991]

6157.	[bug]		When removing delegations in an OPTOUT range
			empty-non-terminal NSEC3 records generated by
			those delegations were not removed. [GL #4027]

6156.	[bug]		Reimplement the maximum and idle timeouts for incoming
			zone tranfers. [GL #4004]

6155.	[bug]		Treat ISC_R_INVALIDPROTO as a networking error
			in the dispatch code to avoid retrying with the
			same server. [GL #4005]

6152.	[bug]		In dispatch, honour the configured source-port
			selection when UDP connection fails with address
			in use error.

			Also treat ISC_R_NOPERM same as ISC_R_ADDRINUSE.
			[GL #3986]

6149.	[test]		As a workaround, include an OpenSSL header file before
			including cmocka.h in the unit tests, because OpenSSL
			3.1.0 uses __attribute__(malloc), conflicting with a
			redefined malloc in cmocka.h. [GL #4000]