> Anything with bytes 1-31,127 will get -EACCES. You're making a mistake of catering to Unix shells which are pure garbage as programming languages instead of fixing them or switching to saner alternatives and then "fixing" kernel to sort-of workaround Unix shells deficiencies.
Formally, you patch will break every program which creates git-style files with filenames only fixing up for \0 and '/'. Now such program should account for low ASCII as well.
