Fix typos

[francois-berder]

Contribution description

I recently came accross codespell, a tool that fixes typos in source code. I simply applied this tool to RIOT with this command: codespell -w ..

I did not include any change that affects:

• vendor headers in cpu/
• files in pkg/
• source code (excluding comments and strings)

Testing procedure

This PR does not change the source code. However, since some strings were changed, it might have an effect on tests looking for specific strings.

Issues/PRs references

None

[aabadie]

Thanks for pointing us to the codespell tool. I tested locally and it's indeed very useful for tracking typos in contributions (see #12232).

In the current state, it will be difficult to merge this PR: there are a lot of files changes, all in a single commit. To make reviewing (and merging) easier for maintainers, I would recommend to merge #12232 first, so we are sure no typos are missing in the changed files and maybe also split this PR in sub-PRs, maybe one PR per top level directories (cpu, boards, drivers, etc) ?

[benpicco]

Murdock didn't finish succesfully successfully either, so looks like not everything got replaced.

[kaspar030]

I have rebased and squashed this, the result is 3a9dade in my repo.

[kaspar030]

#12558 fixes edit most of the remaining typos.

[francois-berder]

#12558 fixes edit most of the remaining typos.

ok so I am closing this PR.