Merge branch '168-coverity-incorrect-shifting-in-dns_rpz_mask' into 'master'

Resolve "coverity: Incorrect shifting in DNS_RPZ_MASK"

Closes #168

See merge request !151
7 jobs for 169-rpzrecurse-test-fails-on-v9_9_sub-branch-due-to-servfail-cache in 6 minutes and 29 seconds (queued for 7 seconds)
Status Job ID Name Coverage
  Precheck
passed #5406
linux docker
precheck:debian:sid:amd64

00:00:10

 
  Build
passed #5407
linux docker
build:debian:sid:amd64

00:01:34

passed #5408
linux docker
build:debian:sid:i386

00:01:39

 
  Test
passed #5411
linux docker
systemtest:debian:sid:amd64

00:04:38

passed #5412
linux docker
systemtest:debian:sid:i386

00:04:39

passed #5409
linux docker
unittest:debian:sid:amd64

00:00:48

passed #5410
linux docker
unittest:debian:sid:i386

00:00:47