zero: send grep output to /dev/null; set ret=0 at start of 'check repeated...

zero: send grep output to /dev/null; set ret=0 at start of 'check repeated recursive lookups of non recurring TTL=0 responses get new values' test so the failed subtest count is correct
26 jobs for 569-zero-system-test-failed-to-set-ret-0-and-send-output-to-dev-null in 8 minutes and 19 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #61312
amd64 docker linux

00:00:21

 
  Build
passed build:centos:centos6:amd64 #61313
amd64 docker linux

00:02:45

passed build:centos:centos7:amd64 #61314
amd64 docker linux

00:02:56

passed build:clang:debian:stretch:amd64 #61315
amd64 docker linux

00:02:08

passed build:clang:debian:stretch:i386 #61319
i386 docker linux

00:01:34

passed build:debian:jessie:amd64 #61316
amd64 docker linux

00:02:16

passed build:debian:sid:amd64 #61318
amd64 docker linux

00:02:04

passed build:debian:sid:i386 #61320
i386 docker linux

00:02:25

passed build:debian:stretch:amd64 #61317
amd64 docker linux

00:02:05

passed pkcs11:build:debian:sid:amd64 #61321
linux amd64 docker

00:02:06

 
  Test
passed install:debian:sid:amd64 #61335
amd64 docker linux

00:01:57

passed pkcs11:systemtest:debian:sid:amd64 #61337
amd64 docker linux

00:04:39

passed pkcs11:unittest:debian:sid:amd64 #61336
amd64 docker linux

00:01:01

passed systemtest:centos:centos6:amd64 #61329
amd64 docker linux

00:04:39

passed systemtest:centos:centos7:amd64 #61330
amd64 docker linux

00:04:38

passed systemtest:debian:jessie:amd64 #61331
amd64 docker linux

00:04:49

passed systemtest:debian:sid:amd64 #61333
amd64 docker linux

00:04:40

passed systemtest:debian:sid:i386 #61334
i386 docker linux

00:04:57

passed systemtest:debian:stretch:amd64 #61332
amd64 docker linux

00:04:43

passed unittest:centos:centos6:amd64 #61322
amd64 docker linux

00:00:50

passed unittest:centos:centos7:amd64 #61323
amd64 docker linux

00:01:04

passed unittest:clang:debian:stretch:amd64 #61327
amd64 docker linux

00:00:52

passed unittest:debian:jessie:amd64 #61324
amd64 docker linux

00:01:05

passed unittest:debian:sid:amd64 #61326
amd64 docker linux

00:00:43

passed unittest:debian:sid:i386 #61328
i386 docker linux

00:00:53

passed unittest:debian:stretch:amd64 #61325
amd64 docker linux

00:00:46