[bug #61009] xargs need option to immediately stop on command fail

Follow-up Comment #3, bug #61009 (project findutils):

> This is my guess because the shown use of find/xargs
> is quite excessive (one cp(1) invocation per file) and unsafe (unusual
filenames
> would break the construct).

About unsafe filenames. If you talk about this:

find . -type f | xargs -IX -n1 sh -c "cp -f X $IMGDIR_DST/X || exit 255"

I understand how unsafe filenames can cause a wrond behaviour. But here(if
-F/-S would be implemented):

find . -type f | xargs -F -IX -n1 cp -f X $IMGDIR_DST/X

I can't find any problem with unsafe filenames. Am i wrong?

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