journal fixes

- silence out of range errors from dns_journal_compact() when serial == 0;
  just start from the beginning of the journal.
- add the starting and ending serial number from the journal header to
  the output of dns_journal_print().
- use a value less than 2^32 for DNS_ZONEFLG_FIXJOURNAL; a larger value
  could cause problems in some build environments.
77 jobs for each-journal-win32 in 11 seconds (queued for 7 seconds)
Status Job ID Name Coverage
  Autoconf
canceled #1556538
amd64 linux
autoreconf

00:00:11

 
  Precheck
canceled #1556540
amd64 linux
clang-format

00:00:10

canceled #1556541
amd64 linux
coccinelle

00:00:10

canceled #1556539
amd64 linux
misc

00:00:10

canceled #1556542
amd64 linux
tarball-create

 
  Build
canceled #1556554
amd64 linux
clang:asan

canceled #1556558
amd64 linux
clang:buster:amd64

canceled #1556561
amd64 libvirt
clang:freebsd11:amd64

canceled #1556562
amd64 libvirt
clang:freebsd12:amd64

canceled #1556563
amd64 libvirt
clang:openbsd:amd64

canceled #1556556
amd64 linux
clang:tsan

canceled #1556543
amd64 linux
gcc:alpine3.13:amd64

canceled #1556553
amd64 linux
gcc:asan

canceled #1556547
amd64 linux
gcc:buster:amd64

canceled #1556544
amd64 linux
gcc:centos7:amd64

canceled #1556545
amd64 linux
gcc:centos8:amd64

canceled #1556552
amd64 linux
gcc:focal:amd64

canceled #1556557
amd64 linux
gcc:mutexatomics

canceled #1556549
amd64 linux
gcc:out-of-tree

canceled #1556548
amd64 linux
gcc:sid:amd64

canceled #1556559
amd64 linux
gcc:softhsm2.4

canceled #1556560
amd64 linux
gcc:softhsm2.6

canceled #1556546
amd64 linux
gcc:stretch:amd64

canceled #1556555
amd64 linux
gcc:tsan

canceled #1556550
amd64 linux
gcc:tumbleweed:amd64

canceled #1556551
amd64 linux
gcc:xenial:amd64

canceled #1556565
amd64 windows
msvc-debug:windows:amd64

00:00:11

canceled #1556564
amd64 windows
msvc:windows:amd64

00:00:11

 
  Unit
canceled #1556576
amd64 linux
unit:clang:asan

canceled #1556580
amd64 linux
unit:clang:buster:amd64

canceled #1556583
amd64 libvirt
unit:clang:freebsd11:amd64

canceled #1556584
amd64 libvirt
unit:clang:freebsd12:amd64

canceled #1556585
amd64 libvirt
unit:clang:openbsd:amd64

canceled #1556578
amd64 linux
unit:clang:tsan

canceled #1556566
amd64 linux
unit:gcc:alpine3.13:amd64

canceled #1556575
amd64 linux
unit:gcc:asan

canceled #1556570
amd64 linux
unit:gcc:buster:amd64

canceled #1556567
amd64 linux
unit:gcc:centos7:amd64

canceled #1556568
amd64 linux
unit:gcc:centos8:amd64

canceled #1556574
amd64 linux
unit:gcc:focal:amd64

canceled #1556579
amd64 linux
unit:gcc:mutexatomics

canceled #1556571
amd64 linux
unit:gcc:sid:amd64

canceled #1556581
amd64 linux
unit:gcc:softhsm2.4

canceled #1556582
amd64 linux
unit:gcc:softhsm2.6

canceled #1556569
amd64 linux
unit:gcc:stretch:amd64

canceled #1556577
amd64 linux
unit:gcc:tsan

canceled #1556572
amd64 linux
unit:gcc:tumbleweed:amd64

canceled #1556573
amd64 linux
unit:gcc:xenial:amd64

 
  System
canceled #1556597
amd64 linux
system:clang:asan

canceled #1556601
amd64 linux
system:clang:buster:amd64

canceled #1556604
amd64 libvirt
system:clang:freebsd11:amd64

canceled #1556605
amd64 libvirt
system:clang:freebsd12:amd64

canceled #1556606
amd64 libvirt
system:clang:openbsd:amd64

canceled #1556599
amd64 linux
system:clang:tsan

canceled #1556586
amd64 linux
system:gcc:alpine3.13:amd64

canceled #1556596
amd64 linux
system:gcc:asan

canceled #1556590
amd64 linux
system:gcc:buster:amd64

canceled #1556587
amd64 linux
system:gcc:centos7:amd64

canceled #1556588
amd64 linux
system:gcc:centos8:amd64

canceled #1556595
amd64 linux
system:gcc:focal:amd64

canceled #1556600
amd64 linux
system:gcc:mutexatomics

canceled #1556592
amd64 linux
system:gcc:out-of-tree

canceled #1556591
amd64 linux
system:gcc:sid:amd64

canceled #1556602
amd64 linux
system:gcc:softhsm2.4

canceled #1556603
amd64 linux
system:gcc:softhsm2.6

canceled #1556589
amd64 linux
system:gcc:stretch:amd64

canceled #1556598
amd64 linux
system:gcc:tsan

canceled #1556593
amd64 linux
system:gcc:tumbleweed:amd64

canceled #1556594
amd64 linux
system:gcc:xenial:amd64

canceled #1556608
amd64 windows
system:msvc-debug:windows:amd64

canceled #1556607
amd64 windows
system:msvc:windows:amd64

 
  Docs
canceled #1556609
amd64 linux
docs

 
  Postcheck
canceled #1556613
amd64 linux
cppcheck

canceled #1556610
amd64 linux
flake8

canceled #1556614
amd64 linux
gcov

canceled #1556611
amd64 linux
pylint

canceled #1556612
amd64 linux
scan-build