Restore default rrset-order to random.

(cherry picked from commit e8154b50)
7 jobs for 336-default-of-rrset-order-silently-changed-to-be-sorted-rather-than-random-v9_12 in 7 minutes and 25 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Precheck
passed #19101
amd64 docker linux
precheck:debian:sid:amd64

00:00:11

 
  Build
passed #19102
amd64 docker linux
build:debian:sid:amd64

00:02:18

passed #19103
i386 docker linux
build:debian:sid:i386

00:02:31

 
  Test
passed #19106
amd64 docker linux
systemtest:debian:sid:amd64

00:04:42

passed #19107
i386 docker linux
systemtest:debian:sid:i386

00:04:41

passed #19104
amd64 docker linux
unittest:debian:sid:amd64

00:00:44

passed #19105
i386 docker linux
unittest:debian:sid:i386

00:00:47