Before sphinx 4.0, this was the default but was changed in 4.0.
Now by default the folder structure looks like this:
man
├── 1
│ └── polybar.1
└── 5
└── polybar.5
This restores the old behavior where there weren't individual folders
for the different sections.
Fixes#2424
Ref: https://www.sphinx-doc.org/en/master/changes.html#id14
The intention was to remove tags that won't have an effect and join
together consecutive tags.
However the patterns used can just as well appear in regular text, so
this can replace characters inside user defined text and not just
formatting tags.
Fixes#2331
