Building 7.2-STABLE from 7.2-RELEASE

[Andrew Klaus]

I'm trying to build a 7.2-STABLE buildworld right after I do a fresh install
of 7.2-RELEASE. The kernel compiles (and boots) properly, without issue,
however when I try to do a buildworld, I get the following error:

objcopy -S -O binary zfsboot.out zfsboot.bin
btxld -v -E 0x2000 -f bin -b
/usr/obj/usr/src/sys/boot/i386/zfsboot/../btx/btx/btx -l zfsboot.ldr  -o
zfsboot.ld -P 1 zfsboot.bin
btxld: zfsboot.ldr: Invalid argument
*** Error code 2

Stop in /usr/src/sys/boot/i386/zfsboot.
*** Error code 1


I know they introduced some new zfsboot stuff into the -Stable branch -
could that have anything to do with it?

Running amd64

Thanks