This patch addresses reviewers need to point to a standard to
follow for Bash shell scripts formatting when contributing to
the Airship project.
It is expected that when code is submitted, it should have
shellcheck run against it before hand. Later these should be
enforced at the gate.
Change-Id: If9a76c90a3d21ddabf8a5bc4d065dc44abe1f4c8
11f52118e6