Add CHANGES entry.

4948.	[bug]		When request-nsid is turned on, EDNS NSID options
			should be logged at level info. Since change 3741
			they have been logged at debug(3) by mistake.
			[GL !290]
10 jobs for u/fanf2/restore-nsid-logging in 10 minutes and 54 seconds (queued for 5 seconds)