Use the same build.sh inside Docker and inside chroot

[probonopd]

@TheAssassin, the introduction of Docker as an alternative to chroot also led to some (hopefully temporary) code duplication.
I think we had already agreed that we wanted to use the same build.sh inside Docker and inside chroot.
Is the only reason this is currently not being done that I don't want bash in the chroot?

[TheAssassin]

Is the only reason this is currently not being done that I don't want bash in the chroot?

That, plus a lack of time. I think you should give up on that topic, though. bash is a standard shell and you really want to use its safety features.