* Do not warn when fixup is skipped for existing file
* [fragment] Fix `--skip-unavailable-fragments` for HTTP Errors
* [utils] write_string: Fix bug in 59f943cd50
* [utils] parse_codecs: Subtitle codec is generally referred to as `scodec`. https://github.com/yt-dlp/yt-dlp/pull/2174#discussion_r790156048
* [docs] Remove note about permissions. Closes#3597