Add option not to run bash after execing stack.sh

If stack.sh is run as root, it execs stack.sh as stack, but also
runs bash after doing so to provide a prompt as the stack user.

In unattended installations this isn't desired as it will prevent
the original job from completing.

This change adds a paremeter "SHELL_AFTER_RUN" which can be set
to "no" to prevent the final invocation of bash.
1 file changed