Enable hacking H233 rule

H233: Python 3.x incompatible use of print operator

Python 3 support is a good feature for OpenStack service client,
and we already have a patch for H233 but still ignore it in hacking check,
we can enable it to avoid introducing such problem again.

Change-Id: I5295ef62eef7a9f6ec7f2b67d6b68dbe2dec7067
ref: https://review.openstack.org/#/c/52841/
Enable default in bash completion

This adds default options to bash completion, allowing to put filenames
after options like --template-file.

Change-Id: I8881028186f26d8fccb611daabf92ba028ca41a8
Merge "Enable default in bash completion"
Merge "Enable hacking H233 rule"