In the latest release of the codespell tool used for automated spell checking of the files of this project, the word "clen" was added to the codespell misspelled words dictionary as a misspelling of "clean".

This caused a false detection of a struct member name `clen` as a misspelling, resulting in a failing spell check result. Since the occurrence of this name is correct and intended in this project, the false positive is resolved by configuring codespell to ignore the problematic word.