Initialize checknames field in dns_view_create()

The 'checknames' field wasn't initialized in dns_view_create(), but it
should otherwise AddressSanitizer identifies the following runtime error
in query_test.c.

    runtime error: load of value 190, which is not a valid value for type '_Bool'

(cherry picked from commit 0c6fa164)
123 jobs for !4736 with 2446-query-c-5430-16-runtime-error-v9_11 in 21 minutes and 48 seconds (queued for 12 seconds)
latest detached
Status Job ID Name Coverage
  Precheck
passed #1520495
amd64 linux
autoreconf

00:00:16

passed #1520497
amd64 linux
clang-format

00:00:10

passed #1520498
amd64 linux
coccinelle

00:01:16

passed #1520499
amd64 linux
danger

00:00:16

passed #1520496
amd64 linux
misc

00:00:19

 
  Build
passed #1520581
amd64 linux
clang:asan

00:04:27

passed #1520520
amd64 linux
clang:buster:amd64

00:01:55

passed #1520522
amd64 libvirt
clang:freebsd11:amd64

00:02:11

passed #1520523
amd64 libvirt
clang:freebsd12:amd64

00:02:01

passed #1520524
amd64 libvirt
clang:openbsd:amd64

00:04:03

passed #1520516
amd64 linux
clang:tsan

00:02:43

passed #1520518
amd64 linux
clang:tsan:noatomics

00:02:14

passed #1520500
amd64 linux
gcc:alpine3.13:amd64

00:01:59

passed #1520513
amd64 linux
gcc:asan

00:03:18

passed #1520506
amd64 linux
gcc:buster:amd64

00:01:28

passed #1520502
amd64 linux
gcc:centos6:amd64

00:01:26

passed #1520501
i386 linux
gcc:centos6:i386

00:01:34

passed #1520503
amd64 linux
gcc:centos7:amd64

00:01:36

passed #1520504
amd64 linux
gcc:centos8:amd64

00:01:42

passed #1520510
amd64 linux
gcc:fedora33:amd64

00:01:37

passed #1520512
amd64 linux
gcc:focal:amd64

00:01:39

passed #1520519
amd64 linux
gcc:noatomics

00:01:52

passed #1520508
amd64 linux
gcc:out-of-tree

00:01:26

passed #1520521
amd64 linux
gcc:pkcs11

00:01:35

passed #1520507
amd64 linux
gcc:sid:amd64

00:02:01

passed #1520505
amd64 linux
gcc:stretch:amd64

00:01:56

passed #1520515
amd64 linux
gcc:tsan

00:02:05

passed #1520517
amd64 linux
gcc:tsan:noatomics

00:01:53

passed #1520509
amd64 linux
gcc:tumbleweed:amd64

00:01:34

passed #1520511
amd64 linux
gcc:xenial:amd64

00:01:47

passed #1520526
amd64 windows
msvc:windows:amd64

00:01:05

passed #1520525
amd64 linux
nolibtool:sid:amd64

00:02:01

canceled #1520514
amd64 linux
clang:asan

00:03:56

 
  Unit
passed #1520583
amd64 linux
unit:clang:asan

00:01:14

passed #1520546
amd64 linux
unit:clang:buster:amd64

00:00:31

passed #1520548
amd64 libvirt
unit:clang:freebsd11:amd64

00:01:08

passed #1520549
amd64 libvirt
unit:clang:freebsd12:amd64

00:00:55

passed #1520585
amd64 linux
unit:clang:tsan

00:04:21

passed #1520587
amd64 linux
unit:clang:tsan:noatomics

00:04:50

passed #1520527
amd64 linux
unit:gcc:alpine3.13:amd64

00:01:02

passed #1520582
amd64 linux
unit:gcc:asan

00:01:34

passed #1520533
amd64 linux
unit:gcc:buster:amd64

00:01:01

passed #1520529
amd64 linux
unit:gcc:centos6:amd64

00:00:38

passed #1520528
i386 linux
unit:gcc:centos6:i386

00:00:35

passed #1520530
amd64 linux
unit:gcc:centos7:amd64

00:00:35

passed #1520531
amd64 linux
unit:gcc:centos8:amd64

00:00:32

passed #1520536
amd64 linux
unit:gcc:fedora33:amd64

00:00:34

passed #1520538
amd64 linux
unit:gcc:focal:amd64

00:00:35

passed #1520545
amd64 linux
unit:gcc:noatomics

00:00:38

passed #1520547
amd64 linux
unit:gcc:pkcs11

00:00:36

passed #1520534
amd64 linux
unit:gcc:sid:amd64

00:00:32

passed #1520532
amd64 linux
unit:gcc:stretch:amd64

00:00:31

passed #1520584
amd64 linux
unit:gcc:tsan

00:05:13

passed #1520586
amd64 linux
unit:gcc:tsan:noatomics

00:05:25

passed #1520535
amd64 linux
unit:gcc:tumbleweed:amd64

00:00:32

passed #1520537
amd64 linux
unit:gcc:xenial:amd64

00:00:31

passed #1520550
amd64 linux
unit:nolibtool:sid:amd64

00:00:50

canceled #1520540
amd64 linux
unit:clang:asan

canceled #1520542
amd64 linux
unit:clang:tsan

00:01:36

canceled #1520544
amd64 linux
unit:clang:tsan:noatomics

00:01:29

canceled #1520539
amd64 linux
unit:gcc:asan

00:00:36

canceled #1520541
amd64 linux
unit:gcc:tsan

00:01:40

canceled #1520543
amd64 linux
unit:gcc:tsan:noatomics

00:01:30

 
  System
passed #1520601
amd64 linux
system:clang:asan

00:09:40

passed #1520607
amd64 linux
system:clang:buster:amd64

00:07:29

passed #1520609
libvirt amd64
system:clang:freebsd11:amd64

00:08:33

passed #1520610
libvirt amd64
system:clang:freebsd12:amd64

00:08:21

passed #1520603
amd64 linux
system:clang:tsan

00:11:50

passed #1520605
amd64 linux
system:clang:tsan:noatomics

00:11:49

passed #1520588
amd64 linux
system:gcc:alpine3.13:amd64

00:08:29

passed #1520600
amd64 linux
system:gcc:asan

00:09:54

passed #1520594
amd64 linux
system:gcc:buster:amd64

00:08:26

passed #1520590
amd64 linux
system:gcc:centos6:amd64

00:07:44

passed #1520589
i386 linux
system:gcc:centos6:i386

00:07:11

passed #1520591
amd64 linux
system:gcc:centos7:amd64

00:07:26

passed #1520592
amd64 linux
system:gcc:centos8:amd64

00:07:25

passed #1520597
amd64 linux
system:gcc:fedora33:amd64

00:07:27

passed #1520599
amd64 linux
system:gcc:focal:amd64

00:07:41

passed #1520606
amd64 linux
system:gcc:noatomics

00:07:38

passed #1520608
amd64 linux
system:gcc:pkcs11

00:08:30

passed #1520595
amd64 linux
system:gcc:sid:amd64

00:07:24

passed #1520593
amd64 linux
system:gcc:stretch:amd64

00:07:39

passed #1520602
amd64 linux
system:gcc:tsan

00:13:10

passed #1520604
amd64 linux
system:gcc:tsan:noatomics

00:13:11

passed #1520596
amd64 linux
system:gcc:tumbleweed:amd64

00:07:46

passed #1520598
amd64 linux
system:gcc:xenial:amd64

00:07:20

passed #1520611
amd64 linux
system:nolibtool:sid:amd64

00:07:57

canceled #1520564
amd64 linux
system:clang:asan

canceled #1520570
amd64 linux
system:clang:buster:amd64

canceled #1520572
amd64 libvirt
system:clang:freebsd11:amd64

00:04:35

canceled #1520573
amd64 libvirt
system:clang:freebsd12:amd64

00:04:40

canceled #1520566
amd64 linux allowed to fail
system:clang:tsan

canceled #1520568
amd64 linux allowed to fail
system:clang:tsan:noatomics

canceled #1520551
amd64 linux
system:gcc:alpine3.13:amd64

00:01:05

canceled #1520563
amd64 linux
system:gcc:asan

canceled #1520557
amd64 linux
system:gcc:buster:amd64

canceled #1520553
amd64 linux
system:gcc:centos6:amd64

00:00:49

canceled #1520552
i386 linux
system:gcc:centos6:i386

00:01:03

canceled #1520554
amd64 linux
system:gcc:centos7:amd64

00:00:45

canceled #1520555
amd64 linux
system:gcc:centos8:amd64

00:00:38

canceled #1520560
amd64 linux
system:gcc:fedora33:amd64

canceled #1520562
amd64 linux
system:gcc:focal:amd64

canceled #1520569
amd64 linux
system:gcc:noatomics

canceled #1520571
amd64 linux
system:gcc:pkcs11

canceled #1520558
amd64 linux
system:gcc:sid:amd64

canceled #1520556
amd64 linux
system:gcc:stretch:amd64

00:00:18

canceled #1520565
amd64 linux allowed to fail
system:gcc:tsan

canceled #1520567
amd64 linux allowed to fail
system:gcc:tsan:noatomics

canceled #1520559
amd64 linux
system:gcc:tumbleweed:amd64

canceled #1520561
amd64 linux
system:gcc:xenial:amd64

canceled #1520574
amd64 linux
system:nolibtool:sid:amd64

 
  Docs
passed #1520612
amd64 linux
docs

00:00:59

canceled #1520575
amd64 linux
docs

 
  Postcheck
passed #1520616
amd64 linux
cppcheck

00:00:32

passed #1520613
amd64 linux
flake8

00:00:36

passed #1520617
amd64 linux
gcov

00:00:37

74.0%
passed #1520614
amd64 linux
pylint

00:00:36

passed #1520615
amd64 linux
scan-build

00:09:51

canceled #1520579
amd64 linux
cppcheck

canceled #1520576
amd64 linux
flake8

canceled #1520580
amd64 linux
gcov

canceled #1520577
amd64 linux
pylint

canceled #1520578
amd64 linux
scan-build