Adjust legacy and digdelv tests for default 1232 EDNS Buffer Size

* the legacy test with -T maxudp512 will just fail, e.g. if the packets
  larger than 512 octets are dropped along the path, the proper response
  is to fail

* digdelv test was just expecting default server EDNS buffer size to be
  4096, the test needed only slight adjustment
74 jobs for !4179 with 2183-dns-flag-day-2020 in 16 minutes and 32 seconds (queued for 14 seconds)
detached
Status Job ID Name Coverage
  Autoconf
passed #1178337
amd64 linux
autoreconf

00:00:20

 
  Precheck
failed #1178339
amd64 linux
clang-format

00:00:16

passed #1178340
amd64 linux
coccinelle

00:03:17

failed #1178341
amd64 linux
danger

00:00:14

passed #1178338
amd64 linux
misc

00:00:12

passed #1178342
amd64 linux
tarball-create

00:01:32

 
  Build
passed #1178355
amd64 linux
clang:asan

00:01:58

passed #1178359
amd64 linux
clang:buster:amd64

00:01:07

passed #1178362
amd64 libvirt
clang:freebsd11:amd64

00:01:19

passed #1178363
amd64 libvirt
clang:freebsd12:amd64

00:01:10

passed #1178364
amd64 libvirt
clang:openbsd:amd64

00:02:43

passed #1178357
amd64 linux
clang:tsan

00:01:18

passed #1178343
amd64 linux
gcc:alpine3.12:amd64

00:00:56

passed #1178354
amd64 linux
gcc:asan

00:01:33

passed #1178347
amd64 linux
gcc:buster:amd64

00:00:55

failed #1178344
amd64 linux
gcc:centos7:amd64

00:00:45

passed #1178345
amd64 linux
gcc:centos8:amd64

00:00:59

passed #1178353
amd64 linux
gcc:focal:amd64

00:00:52

passed #1178358
amd64 linux
gcc:mutexatomics

00:00:57

passed #1178349
amd64 linux
gcc:out-of-tree

00:01:00

passed #1178348
amd64 linux
gcc:sid:amd64

00:01:19

passed #1178350
i386 linux
gcc:sid:i386

00:00:56

passed #1178360
amd64 linux
gcc:softhsm2.4

00:00:55

passed #1178361
amd64 linux
gcc:softhsm2.6

00:01:02

passed #1178346
amd64 linux
gcc:stretch:amd64

00:00:56

passed #1178356
amd64 linux
gcc:tsan

00:01:14

passed #1178351
amd64 linux
gcc:tumbleweed:amd64

00:00:59

passed #1178352
amd64 linux
gcc:xenial:amd64

00:00:53

passed #1178365
amd64 windows
msvc:windows:amd64

00:00:51

 
  Unit
passed #1178377
amd64 linux
unit:clang:asan

00:01:14

passed #1178381
amd64 linux
unit:clang:buster:amd64

00:00:55

passed #1178384
amd64 libvirt
unit:clang:freebsd11:amd64

00:01:18

passed #1178385
amd64 libvirt
unit:clang:freebsd12:amd64

00:01:19

passed #1178379
amd64 linux
unit:clang:tsan

00:02:51

passed #1178366
amd64 linux
unit:gcc:alpine3.12:amd64

00:01:00

passed #1178376
amd64 linux
unit:gcc:asan

00:01:08

passed #1178370
amd64 linux
unit:gcc:buster:amd64

00:00:58

skipped #1178367
amd64 linux
unit:gcc:centos7:amd64
passed #1178368
amd64 linux
unit:gcc:centos8:amd64

00:00:59

passed #1178375
amd64 linux
unit:gcc:focal:amd64

00:00:57

passed #1178380
amd64 linux
unit:gcc:mutexatomics

00:01:05

passed #1178371
amd64 linux
unit:gcc:sid:amd64

00:00:55

passed #1178372
i386 linux
unit:gcc:sid:i386

00:01:00

passed #1178382
amd64 linux
unit:gcc:softhsm2.4

00:00:59

passed #1178383
amd64 linux
unit:gcc:softhsm2.6

00:01:04

passed #1178369
amd64 linux
unit:gcc:stretch:amd64

00:01:01

passed #1178378
amd64 linux
unit:gcc:tsan

00:03:39

passed #1178373
amd64 linux
unit:gcc:tumbleweed:amd64

00:00:54

passed #1178374
amd64 linux
unit:gcc:xenial:amd64

00:01:06

 
  System
passed #1178397
amd64 linux
system:clang:asan

00:11:53

passed #1178401
amd64 linux
system:clang:buster:amd64

00:10:00

passed #1178404
amd64 libvirt
system:clang:freebsd11:amd64

00:10:48

failed #1178405
amd64 libvirt
system:clang:freebsd12:amd64

00:10:10

failed #1178399
amd64 linux allowed to fail
system:clang:tsan

00:13:56

passed #1178386
amd64 linux
system:gcc:alpine3.12:amd64

00:12:04

passed #1178396
amd64 linux
system:gcc:asan

00:12:32

passed #1178390
amd64 linux
system:gcc:buster:amd64

00:10:24

skipped #1178387
amd64 linux
system:gcc:centos7:amd64
passed #1178388
amd64 linux
system:gcc:centos8:amd64

00:11:29

passed #1178395
amd64 linux
system:gcc:focal:amd64

00:10:45

passed #1178400
amd64 linux
system:gcc:mutexatomics

00:11:20

passed #1178391
amd64 linux
system:gcc:sid:amd64

00:11:09

passed #1178392
i386 linux
system:gcc:sid:i386

00:11:18

passed #1178402
amd64 linux
system:gcc:softhsm2.4

00:11:05

passed #1178403
amd64 linux
system:gcc:softhsm2.6

00:11:05

passed #1178389
amd64 linux
system:gcc:stretch:amd64

00:10:05

failed #1178398
amd64 linux allowed to fail
system:gcc:tsan

00:13:52

passed #1178393
amd64 linux
system:gcc:tumbleweed:amd64

00:10:28

passed #1178394
amd64 linux
system:gcc:xenial:amd64

00:10:13

 
  Docs
passed #1178406
amd64 linux
docs

00:00:38

 
  Postcheck
passed #1178410
amd64 linux
cppcheck

00:00:49

passed #1178407
amd64 linux
flake8

00:00:23

passed #1178408
amd64 linux
pylint

00:00:21

passed #1178409
amd64 linux
scan-build

00:04:32

 
Name Stage Failure
failed
system:gcc:tsan System
E:rpzrecurse:2020-09-23T14:45:37+0000
FAIL rpzrecurse (exit status: 1)

$ find bin -name 'tsan.*' -exec python3 util/parse_tsan.py {} \;
Uploading artifacts for failed job
Uploading artifacts...
untracked: found 2889 files

Uploading artifacts as "archive" to coordinator... ok
id=1178398 responseStatus=201 Created token=h89YKKD3
ERROR: Job failed: exit code 1
failed
system:clang:tsan System
E:allow-query:2020-09-23T14:43:31+0000
FAIL allow-query (exit status: 1)

$ find bin -name 'tsan.*' -exec python3 util/parse_tsan.py {} \;
Uploading artifacts for failed job
Uploading artifacts...
untracked: found 1575 files

Uploading artifacts as "archive" to coordinator... ok
id=1178399 responseStatus=201 Created token=7Hyodqm2
ERROR: Job failed: exit code 1
failed
system:clang:freebsd12:amd64 System
E:dnstap:2020-09-23T14:50:40+0000
FAIL dnstap (exit status: 1)

Uploading artifacts for failed job
Uploading artifacts...
Runtime platform
arch=amd64 os=freebsd pid=50983 revision=86ad88ea version=13.3.0
untracked: found 1523 files

Uploading artifacts as "archive" to coordinator... ok
id=1178405 responseStatus=201 Created token=c28aQsyy
ERROR: Job failed: exit status 1
failed
gcc:centos7:amd64 Build
make[2]: Leaving directory `/builds/isc-projects/bind9/bin'
Making all in fuzz
make[2]: Entering directory `/builds/isc-projects/bind9/fuzz'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/builds/isc-projects/bind9/fuzz'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/builds/isc-projects/bind9'
make: *** [all] Error 2
ERROR: Job failed: exit code 1
failed
clang-format Precheck
Removing util/check-make-install

Skipping Git submodules setup
Executing "step_script" stage of the job script
$ if [ -r .clang-format ]; then "${CLANG_FORMAT}" -i -style=file $(git ls-files '*.c' '*.h'); fi
$ if test "$(git status --porcelain | grep -Ev '\?\?' | wc -l)" -gt "0"; then git status --short; exit 1; fi
M lib/dns/include/dns/resolver.h
M lib/isc/unix/socket.c
ERROR: Job failed: exit code 1
failed
danger Precheck

* [new branch] main -> origin/main



Failing the build, there is 1 fail.
Feedback: https://gitlab.isc.org/isc-projects/bind9/merge_requests/4179#note_165353

ERROR: Job failed: exit code 1