check-executables-have-shebangs supports being run on files outside of a Git repository, so it seems natural for check-shebang-scripts-are-executable to do the same. I would guess it's also slightly faster to check executable bits through the file system when it can be trusted to track them properly.
check-executables-have-shebangssupports being run on files outside of a Git repository, so it seems natural forcheck-shebang-scripts-are-executableto do the same. I would guess it's also slightly faster to check executable bits through the file system when it can be trusted to track them properly.