Not sure if you're still looking into this, but the following script works perfectly for me on the crux branch:
Aug 10 2019
Ok, I feel very noobish, but I can't seem to change it. Any pointers?
Oh thought I did, sorry do not github very often. Let me dive in for a sec.
Ah apologies, should be fixed now.
My fix is here: https://github.com/vyos/vyos-vmwaretools-scripts/pull/2
See https://github.com/vyos/vyos-build/pull/58 for what I think is the fix.