Explicitly set "man_make_section_directory"

The default value of the "man_make_section_directory" Sphinx option was
changed in Sphinx 4.0.1, which broke building man pages in maintainer
mode as the shell code in doc/man/Makefile.am expects man pages to be
built in doc/man/_build/man/, not doc/man/_build/man/<section_number>/.
The aforementioned change in defaults was reverted in Sphinx 4.0.2, but
this issue should still be prevented from reoccurring in the future.
Ensure that by explicitly setting the "man_make_section_directory"
option to False.

(cherry picked from commit 9ec83d1f)
78 jobs for !5078 with michal/regenerate-man-pages-with-sphinx-4.0.2-v9_16 in 7 minutes and 37 seconds (queued for 10 seconds)
latest detached
Status Job ID Name Coverage
  Precheck
passed #1737857
amd64 linux
autoreconf

00:00:16

passed #1737859
amd64 linux
clang-format

00:00:18

passed #1737860
amd64 linux
coccinelle

00:03:51

passed #1737861
amd64 linux
danger

00:00:18

passed #1737858
amd64 linux
misc

00:00:14

 
  Build
passed #1737874
amd64 linux
clang:asan

00:03:51

passed #1737878
amd64 linux
clang:buster:amd64

00:01:48

passed #1737881
amd64 libvirt
clang:freebsd11:amd64

00:02:04

passed #1737882
amd64 libvirt
clang:freebsd12:amd64

00:01:58

passed #1737883
amd64 libvirt
clang:openbsd:amd64

00:03:30

passed #1737876
amd64 linux
clang:tsan

00:02:54

passed #1737862
amd64 linux
gcc:alpine3.13:amd64

00:01:45

passed #1737873
amd64 linux
gcc:asan

00:03:23

passed #1737866
amd64 linux
gcc:buster:amd64

00:01:28

passed #1737863
amd64 linux
gcc:centos7:amd64

00:01:32

passed #1737864
amd64 linux
gcc:centos8:amd64

00:01:38

passed #1737872
amd64 linux
gcc:focal:amd64

00:01:43

passed #1737877
amd64 linux
gcc:mutexatomics

00:01:35

passed #1737868
amd64 linux
gcc:out-of-tree

00:01:33

passed #1737867
amd64 linux
gcc:sid:amd64

00:02:17

passed #1737869
i386 linux
gcc:sid:i386

00:01:43

passed #1737879
amd64 linux
gcc:softhsm2.4

00:01:45

passed #1737880
amd64 linux
gcc:softhsm2.6

00:01:36

passed #1737865
amd64 linux
gcc:stretch:amd64

00:01:53

passed #1737875
amd64 linux
gcc:tsan

00:01:59

passed #1737870
amd64 linux
gcc:tumbleweed:amd64

00:01:35

passed #1737871
amd64 linux
gcc:xenial:amd64

00:01:45

passed #1737885
amd64 windows
msvc:windows:amd64

00:01:00

passed #1737884
amd64 linux
nolibtool:sid:amd64

00:02:16

 
  Unit
passed #1737897
amd64 linux
unit:clang:asan

00:01:17

passed #1737901
amd64 linux
unit:clang:buster:amd64

00:00:41

passed #1737904
amd64 libvirt
unit:clang:freebsd11:amd64

00:01:11

passed #1737905
amd64 libvirt
unit:clang:freebsd12:amd64

00:01:15

passed #1737899
amd64 linux
unit:clang:tsan

00:01:39

passed #1737886
amd64 linux
unit:gcc:alpine3.13:amd64

00:00:43

passed #1737896
amd64 linux
unit:gcc:asan

00:01:16

passed #1737890
amd64 linux
unit:gcc:buster:amd64

00:00:57

passed #1737887
amd64 linux
unit:gcc:centos7:amd64

00:00:41

passed #1737888
amd64 linux
unit:gcc:centos8:amd64

00:00:44

passed #1737895
amd64 linux
unit:gcc:focal:amd64

00:00:35

passed #1737900
amd64 linux
unit:gcc:mutexatomics

00:00:45

passed #1737891
amd64 linux
unit:gcc:sid:amd64

00:00:46

passed #1737892
i386 linux
unit:gcc:sid:i386

00:00:53

passed #1737902
amd64 linux
unit:gcc:softhsm2.4

00:00:41

passed #1737903
amd64 linux
unit:gcc:softhsm2.6

00:00:41

passed #1737889
amd64 linux
unit:gcc:stretch:amd64

00:00:40

passed #1737898
amd64 linux
unit:gcc:tsan

00:01:57

passed #1737893
amd64 linux
unit:gcc:tumbleweed:amd64

00:00:47

passed #1737894
amd64 linux
unit:gcc:xenial:amd64

00:00:38

passed #1737906
amd64 linux
unit:nolibtool:sid:amd64

00:01:08

 
  System
canceled #1737918
amd64 linux
system:clang:asan

00:03:17

canceled #1737922
amd64 linux
system:clang:buster:amd64

00:04:29

canceled #1737925
amd64 libvirt
system:clang:freebsd11:amd64

00:05:02

canceled #1737926
amd64 libvirt
system:clang:freebsd12:amd64

00:04:57

canceled #1737920
amd64 linux
system:clang:tsan

00:04:07

canceled #1737907
amd64 linux
system:gcc:alpine3.13:amd64

00:05:27

canceled #1737917
amd64 linux
system:gcc:asan

00:03:46

canceled #1737911
amd64 linux
system:gcc:buster:amd64

00:04:41

canceled #1737908
amd64 linux
system:gcc:centos7:amd64

00:05:44

canceled #1737909
amd64 linux
system:gcc:centos8:amd64

00:05:34

canceled #1737916
amd64 linux
system:gcc:focal:amd64

00:04:38

canceled #1737921
amd64 linux
system:gcc:mutexatomics

00:05:41

canceled #1737912
amd64 linux
system:gcc:sid:amd64

00:04:49

canceled #1737913
i386 linux
system:gcc:sid:i386

00:04:47

canceled #1737923
amd64 linux
system:gcc:softhsm2.4

00:04:27

canceled #1737924
amd64 linux
system:gcc:softhsm2.6

00:05:38

canceled #1737910
amd64 linux
system:gcc:stretch:amd64

00:04:49

canceled #1737919
amd64 linux
system:gcc:tsan

00:04:37

canceled #1737914
amd64 linux
system:gcc:tumbleweed:amd64

00:05:27

canceled #1737915
amd64 linux
system:gcc:xenial:amd64

00:04:45

canceled #1737927
amd64 linux
system:nolibtool:sid:amd64

00:04:17

 
  Docs
passed #1737934
amd64 linux
docs

00:02:27

failed #1737928
amd64 linux
docs

00:02:15

 
  Postcheck
passed #1737932
amd64 linux
cppcheck

00:00:24

passed #1737929
amd64 linux
flake8

00:00:22

canceled #1737933
amd64 linux
gcov

passed #1737930
amd64 linux
pylint

00:00:26

canceled #1737931
amd64 linux
scan-build

00:07:06