The new sphinx version introduces some changes that break build:
* Warns if code cannot be parsed for highlighting. Fix the code so
that it can be parsed, this includes uncommenting "..." lines.
Note that not every config file is an ini-file.
Also, the parser seems to have bugs and cannot parse all files.
Fix mysql ini file and enable the parameter, see
* :option: works only with declared options, replace useage with
This change only handles a few files, more to come later.
The CentOS custom cloud image example is missing the proper depedency
to grow the root partition and also omits that the root partition
should be the last partition created during disk partitioning.