Michael Spang [off-list ref] writes:
Is this even properly solvable without making clean a builtin or
writing git-unescape?
If you know how to use "xargs -0" and are willing to depend on
the -0 GNU extension, then the answer is yes.
I do not use git-clean myself, as I do not see what (I think) it
tries to solve as a problem to begin with, so obviously I do not
care too deeply about the command's implementation --- I just
let it be there because there seem to be others who want it ---
but if I were asked an advice on the right direction to proceed,
I would probably suggest rewriting it in C.