Log Message:
net/bind916: update to 9.16.49

9.16.49 (2024-03-20)

6356.	[bug]		Create the pruning task in the dns_cache_flush(), so
			the cache pruning still works after the flush.
			[GL #4621]

6353.	[bug]		Improve the TTL-based cleaning by removing the expired
			headers from the heap, so they don't block the next
			cleaning round and clean more than a single item for
			each new addition to the RBTDB. [GL #4591]

6352.	[bug]		Decrease lock contention during RBTDB tree pruning
			introduced in change 6319 by making the prunenodes list
			bucketed and not cleaning up nodes recursively within a
			single prune_tree() call. [GL #4596]

6350.	[bug]		Address use after free in expire_lru_headers. [GL #4495]