Do not rely on default dig options in system tests

Some system tests assume dig's default setings are in effect.  While
these defaults may only be silently overridden (because of specific
options set in /etc/resolv.conf) for BIND releases using liblwres for
parsing /etc/resolv.conf (i.e. BIND 9.11 and older), it is arguably
prudent to make sure that tests relying on specific +timeout and +tries
settings specify these explicitly in their dig invocations, in order to
prevent test failures from being triggered by any potential changes to
current defaults.
39 jobs for !1556 with 893-do-not-rely-on-default-dig-options-in-system-tests in 13 minutes and 24 seconds (queued for 13 seconds)
detached
Status Job ID Name Coverage
  Precheck
passed #207769
amd64 linux
🐞:sid:amd64

00:00:13

passed #207768
amd64 linux
misc:sid:amd64

00:00:18

 
  Build
passed #207780
amd64 linux
asan:sid:amd64

00:03:46

passed #207781
amd64 linux
clang:stretch:amd64

00:02:03

passed #207782
i386 linux
clang:stretch:i386

00:02:04

passed #207770
amd64 linux
docs:sid:amd64

00:00:48

passed #207779
amd64 linux
gcc:bionic:amd64

00:01:11

passed #207771
amd64 linux
gcc:centos6:amd64

00:02:35

passed #207772
amd64 linux
gcc:centos7:amd64

00:02:44

passed #207777
amd64 linux
gcc:fedora29:amd64

00:02:07

passed #207773
amd64 linux
gcc:jessie:amd64

00:01:41

passed #207775
amd64 linux
gcc:sid:amd64

00:02:10

passed #207776
i386 linux
gcc:sid:i386

00:01:19

passed #207774
amd64 linux
gcc:stretch:amd64

00:01:03

passed #207778
amd64 linux
gcc:xenial:amd64

00:01:50

passed #207783
amd64 linux
pkcs11:sid:amd64

00:01:57

 
  Test
passed #207802
amd64 linux
system:asan:sid:amd64

00:09:18

passed #207800
amd64 linux
system:gcc:bionic:amd64

00:08:20

passed #207784
amd64 linux
system:gcc:centos6:amd64

00:07:25

passed #207786
amd64 linux
system:gcc:centos7:amd64

00:07:30

passed #207796
amd64 linux
system:gcc:fedora29:amd64

00:07:44

passed #207788
amd64 linux
system:gcc:jessie:amd64

00:07:38

passed #207792
amd64 linux
system:gcc:sid:amd64

00:07:23

passed #207794
i386 linux
system:gcc:sid:i386

00:07:10

passed #207790
amd64 linux
system:gcc:stretch:amd64

00:07:07

passed #207798
amd64 linux
system:gcc:xenial:amd64

00:07:06

passed #207805
amd64 linux
system:pkcs11:sid:amd64

00:07:50

passed #207803
amd64 linux
unit:asan:sid:amd64

00:00:54

passed #207804
amd64 linux
unit:clang:stretch:amd64

00:00:47

passed #207801
amd64 linux
unit:gcc:bionic:amd64

00:00:48

passed #207785
amd64 linux
unit:gcc:centos6:amd64

00:00:47

passed #207787
amd64 linux
unit:gcc:centos7:amd64

00:00:51

passed #207797
amd64 linux
unit:gcc:fedora29:amd64

00:00:51

passed #207789
amd64 linux
unit:gcc:jessie:amd64

00:00:32

passed #207793
amd64 linux
unit:gcc:sid:amd64

00:00:48

passed #207795
i386 linux
unit:gcc:sid:i386

00:00:48

passed #207791
amd64 linux
unit:gcc:stretch:amd64

00:00:52

passed #207799
amd64 linux
unit:gcc:xenial:amd64

00:00:45

passed #207806
amd64 linux
unit:pkcs11:sid:amd64

00:00:49