Before bashate was only running on the devstack/ directory. Have it
now run on the entire project for *.sh files.
Fix issues detected by bashate.
Also check the files:
devstack/files/hooks/qemu
devstack/lib/ironic
These files were located by doing:
$ find openstack/ironic/ -not \( -type d -name .?\* -prune \) \
-type f -not -name '*.sh' | xargs file | grep -i "shell script"
Change-Id: I238b7ab650781143fe8231e01250ab56120ff94f