use new packet for response; rename variable to request and response

(cherry picked from commit 280d0ca5)
16 jobs for 649-resolver-test-failing-v9_12 in 12 minutes and 5 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #81129
amd64 docker linux

00:00:17

 
  Build
passed build:centos:centos6:amd64 #81130
amd64 docker linux

00:02:06

passed build:centos:centos7:amd64 #81131
amd64 docker linux

00:02:15

passed build:debian:sid:amd64 #81132
amd64 docker linux

00:01:33

passed build:debian:sid:i386 #81133
i386 docker linux

00:01:35

 
  Test
passed docs:debian:sid:amd64 #81134
amd64 docker linux

00:00:58

passed install:debian:sid:amd64 #81143
amd64 docker linux

00:02:33

passed systemtest:centos:centos6:amd64 #81162
linux docker amd64

00:04:42

passed systemtest:centos:centos7:amd64 #81140
amd64 docker linux

00:04:49

passed systemtest:debian:sid:amd64 #81141
amd64 docker linux

00:04:42

passed systemtest:debian:sid:i386 #81142
i386 docker linux

00:04:36

passed unittest:centos:centos6:amd64 #81135
amd64 docker linux

00:01:02

passed unittest:centos:centos7:amd64 #81136
amd64 docker linux

00:00:54

passed unittest:debian:sid:amd64 #81137
amd64 docker linux

00:00:57

passed unittest:debian:sid:i386 #81138
i386 docker linux

00:00:49

failed systemtest:centos:centos6:amd64 #81139
amd64 docker linux

00:04:53