Bug#1031696: Use of symbolic links in non-free ISO images breaks file system transposition support

[James Addison <jay@jp-hosting.net>]

Followup-For: Bug #1031696

Thinking aloud: as an alternative, would adding the '-f' flag to MKISOFS
achieve the desired result for both documentation and firmware files, without
requiring any other changes?

(I'll mention as context that there are symlinks in the debian-faq tarball
that is used as input for the on-disc documentation)

[1] - https://manpages.debian.org/bullseye/genisoimage/mkisofs.1.en.html#f

[2] - https://manpages.debian.org/bullseye/xorriso/xorrisofs.1.en.html#f