* Use default group of staff on macos to prevent sudo issues
* Install gnu-tar for macos in git and unarchive tests
* Enable timezone module to support py3 on macos
* If the virtualenv command is missing, try python -m virtualenv
* Install passlib for filter_core on macos
* Install paramiko via pip on macos for paramiko tests
* Normalize discovered python interpreter on macos
* Get pip tests passing, by ensuring we have wheel installed
* Create /etc/ansible for ca certs on mac, list lookup_url as destructive
* Fixups for CA certs
* Include macos
* Dynamically get cafile instead of hardcoding the path
This change corrects problems reported by the `yamllint` linter.
Since key duplication problems were removed in 4d48711, this commit
mainly fixes trailing spaces and extra empty lines at beginning/end of
files.
