etc/dists/scripts/{set_*,postcreate}.sh: de-bash-ify

There is nothing bash-specific in these scripts, so make them executed
by /bin/sh.

Well, the true story is these scripts are read by vzctl and executed by
running /bin/bash and then /bin/sh inside a container, when writing the
'functions' file and then the script contents to shell's stdin. So,
these '#!/bin/whatever' does not really matter, and if bash is available
it will be used since it is tried first, before /bin/sh.

Nevertheless, dash should handle these scripts just fine, too, in case
someone cares.

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
4 files changed