[PATCH 4/4] Add lh_chroot_preseed helper
Given that we already had a preseed helper in live-package, which was
skipped in live-helper for no ovious reason, that this one here is
actually identical, and that it's easier to not clutter the copyright
/just/ for that, Otavio agreed to set the copyright header to default
one which live-helper has.
Applied the patch, changed indenting and outputting of the error message
a bit, and applied.
Address: Daniel Baumann, Burgunderstrasse 3, CH-4562 Biberist
Email: daniel.baumann at panthera-systems.net