make doc-man fails

[yan12125]

Expected behaviour

make doc-man builds man pages nextcloud.1 and nextcloudcmd.1

Actual behaviour

Neither is built

Steps to reproduce

1. cmake .
2. make doc-man

$ LANG=C make doc-man
Running Sphinx v1.8.0
loading pickled environment... done
building [mo]: targets for 0 po files that are out of date
building [man]: all manpages
updating environment: 0 added, 0 changed, 0 removed
looking for now-outdated files... none found
pickling environment... done
writing... WARNING: "man_pages" config value references unknown document nextcloud.1
WARNING: "man_pages" config value references unknown document nextcloudcmd.1

build succeeded, 2 warnings.

The manual pages are in man1.
Built target doc-man

Client configuration

Client version: git-master

Operating system: Arch Linux x86_64 up-to-date

OS language: English

Qt version used by client package (Linux only, see also Settings dialog): 5.11.2

Client package (From ownCloud or distro) (Linux only): built from source

Installation path of client: N/A - build issue

Server configuration

N/A - client issue

[ghost]

I'm closing the issue because the pr should have fixed the problem. If the problem still exists on the master branch, feel free to reopen it and I will take another crack at it.