Modify cloudinit to use 'mkisofs' instead of 'genisoimage'.
Modify cloudinit to use 'mkisofs' instead of 'genisoimage'.

genisoimage was debian's fork of mkisofs so the two are compatible, but
mkisofs is available on more OS' (e.g. macOS via brew).

dmacvicar/terraform-provider-libvirt,deasmi/terraform-provider-libvirt,deasmi/terraform-provider-libvirt,dmacvicar/terraform-provider-libvirt,dmacvicar/terraform-provider-libvirt,deasmi/terraform-provider-libvirt