Following the latest dib-lint reporting, make sure almost all the
scripts are enabling -e, -u, and pipefail. This eases the discovery of
failing commands, and the usage of unset variables.
There are few exceptions with flags not set:
* elements/hadoop-hdp/install.d/40-install-hdp, set -e
when installing HDP 2.0, it tries to install tez, which does not seem
to exist in Hortonworks' repositories
* elements/ssh/install.d/33-ssh, set -e
the version of augtool (part of augeas 0.10) in older Ubuntu versions
(like Precise, needed by the cloudera plugin) exits with wrong return
values in autosave mode
* elements/storm/install.d/60-storm, set -e
It tries to change the permission of /etc/supervisord.conf, which does
not seem to exist
Change-Id: Ic1314639dfc6a66c48ca87b6820707a2b0cb1dbd
Partial-Bug: #1435306
2fb2422da8