initramfs-tools Etch 0.85i update
please review for a stable release those 2 changes,
cherry picked from master
the Xen boot fix is needed for partial upgrades,
as none of the newer linux-images depends on latest initramfs-tools.
the later one has been debugged today by axel beckert and causes
update-initramfs to fail with an unbootable initramfs in stable.
thanks for review, as soon as acked i'll upload to stable
with no other changes.