$ find * -type f |xargs perl contrib/scripts/spdx.pl
  $ git rm contrib/scripts/spdx.pl

  sed '1,3 { /^\(#\|--\) *vim:/d }; 1 { /^\/\* *vim:.*\*\/$/ d}' -i $(git grep -l 'vim:')

We no longer add these. If you use Emacs, configure it yourself.

Also, due to our "smart-tab" usage the editor anyway does a subpar
job handling our tabs. However, on the upside every user can choose
whatever tab-width he/she prefers. If "smart-tabs" are used properly
(like we do), every tab-width will work.

No manual changes, just ran commands:

    F=($(git grep -l -e '-\*-'))
    sed '1 { /\/\* *-\*-  *[mM]ode.*\*\/$/d }'     -i "${F[@]}"
    sed '1,4 { /^\(#\|--\|dnl\) *-\*- [mM]ode/d }' -i "${F[@]}"

Check remaining lines with:

    git grep -e '-\*-'

The ultimate purpose of this is to cleanup our files and eventually use
SPDX license identifiers. For that, first get rid of the boilerplate lines.

Remainder of typos found using `codespell -q 3 --skip="./shared,./src/systemd,*.po" -I ../NetworkManager-word-whitelist.txt` whereby whitelist consists of:
 ```
ans
busses
cace
cna
conexant
crasher
iff
liftime
creat
nd
sav
technik
uint
```

https://github.com/NetworkManager/NetworkManager/pull/205

`generate-plugin-docs.pl` script which is used to parse
`nm-setting-c*.c` files depends on autotools. This is because it
parses the `Makefile.am` in order to figure out the setting files
it needs to parse.

This patch makes the script independent of autotools by passing
the necessary setting files by command line instead of parsing the
`Makefile.am` file. It also changes the autotools' and meson's
accordingly.

If no setting name is found in the file, it means that the file
possibly contains a setting superclass (e.g. NMSettingIPConfig)
without any property definition; just ignore it.

That serves no purpose whatsoever.

It makes little sense to produce a YAML and then decompose it.