Bug#638068: initramfs-tools generates unbootable initrd.img on IA-64

[Adam Conrad <adconrad@0c3.net>]

I've committed a fix for #638068 to git.

It doesn't address the fact that klibc/sh appears to not be
"good enough" to boot ia64 (which is an entirely different
and, I assume, klibc bug), but it should improve the handling
enough to make it at least do as requested for both BUSYBOX=y
and BUSYBOX=n (which should fix ia64, as long as you use =y)

Can someone test out git head and let me know if this works
for you.  It looks "obviously correct" to me, but I can't
readily test it to make sure it DTRT.

... Adam