named-checkconf -i: ignore deprecate warnings

Adds a new option to named-checkconf, -i.  If set, named-checkconf
will not warn you about deprecated options.  This allows people
to use named-checkconf in automated deployment precoesses where an
operator only cares if their conf is valid, even if it is not optimal.

This was added as a request as part of introducing a policy on
removing named.conf options.
47 jobs for !2079 with 1101-matthijs-checkconf-i in 13 minutes and 35 seconds (queued for 4 seconds)
detached
Status Job ID Name Coverage
  Precheck
passed #263775
amd64 linux
🐞:sid:amd64

00:00:16

passed #263772
amd64 linux
autoconf

00:00:39

passed #263773
amd64 linux
autoreconf:sid:amd64

00:00:34

passed #263774
amd64 linux
misc:sid:amd64

00:00:18

 
  Build
passed #263786
amd64 linux
asan:sid:amd64

00:05:20

passed #263788
amd64 linux
clang:stretch:amd64

00:02:41

passed #263789
i386 linux
clang:stretch:i386

00:03:09

passed #263776
amd64 linux
docs:sid:amd64

00:00:59

passed #263785
amd64 linux
gcc:bionic:amd64

00:02:33

passed #263777
amd64 linux
gcc:centos6:amd64

00:02:10

passed #263778
amd64 linux
gcc:centos7:amd64

00:02:16

passed #263783
amd64 linux
gcc:fedora29:amd64

00:03:14

passed #263779
amd64 linux
gcc:jessie:amd64

00:02:18

passed #263781
amd64 linux
gcc:sid:amd64

00:03:01

passed #263782
i386 linux
gcc:sid:i386

00:03:06

passed #263780
amd64 linux
gcc:stretch:amd64

00:01:28

passed #263784
amd64 linux
gcc:xenial:amd64

00:02:28

passed #263791
amd64 linux
nolibtool:sid:amd64

00:01:52

passed #263790
amd64 linux
pkcs11:sid:amd64

00:02:02

passed #263787
amd64 linux
rwlock:sid:amd64

00:02:34

 
  Test
passed #263810
amd64 linux
system:asan:sid:amd64

00:07:33

passed #263808
amd64 linux
system:gcc:bionic:amd64

00:07:10

passed #263792
amd64 linux
system:gcc:centos6:amd64

00:06:28

passed #263794
amd64 linux
system:gcc:centos7:amd64

00:06:36

passed #263804
amd64 linux
system:gcc:fedora29:amd64

00:06:21

passed #263796
amd64 linux
system:gcc:jessie:amd64

00:06:30

passed #263800
amd64 linux
system:gcc:sid:amd64

00:07:14

passed #263802
i386 linux
system:gcc:sid:i386

00:06:53

passed #263798
amd64 linux
system:gcc:stretch:amd64

00:06:45

passed #263806
amd64 linux
system:gcc:xenial:amd64

00:06:53

passed #263817
amd64 linux
system:nolibtool:sid:amd64

00:06:52

passed #263815
amd64 linux
system:pkcs11:sid:amd64

00:06:37

passed #263812
amd64 linux
system:rwlock:sid:amd64

00:07:07

passed #263811
amd64 linux
unit:asan:sid:amd64

00:00:57

passed #263814
amd64 linux
unit:clang:stretch:amd64

00:00:49

passed #263809
amd64 linux
unit:gcc:bionic:amd64

00:01:03

passed #263793
amd64 linux
unit:gcc:centos6:amd64

00:00:47

passed #263795
amd64 linux
unit:gcc:centos7:amd64

00:00:54

passed #263805
amd64 linux
unit:gcc:fedora29:amd64

00:00:57

passed #263797
amd64 linux
unit:gcc:jessie:amd64

00:00:31

passed #263801
amd64 linux
unit:gcc:sid:amd64

00:00:54

passed #263803
i386 linux
unit:gcc:sid:i386

00:00:58

passed #263799
amd64 linux
unit:gcc:stretch:amd64

00:00:56

passed #263807
amd64 linux
unit:gcc:xenial:amd64

00:00:58

passed #263818
amd64 linux
unit:nolibtool:sid:amd64

00:01:41

passed #263816
amd64 linux
unit:pkcs11:sid:amd64

00:00:44

passed #263813
amd64 linux
unit:rwlock:sid:amd64

00:00:45