Add CHANGES entry

4912.	[test]		Improved the reliability of the 'cds' system test.
			[GL #136]
5 jobs for 136-tweak-timestamp-checking-in-the-cds-system-test in 9 minutes and 10 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #3577
linux docker

00:00:17

 
  Build
passed build:debian:sid:amd64 #3578
linux docker

00:03:09

passed build:debian:sid:i386 #3579
docker linux

00:03:12

 
  Test
passed test:debian:sid:amd64 #3580
docker linux

00:05:36

passed test:debian:sid:i386 #3581
docker linux

00:05:39