Include practice to use loop and loop_var

[bontreger]

As per this ansible lint role, a recommendation to use loop and loop_var - https://ansible-lint.readthedocs.io/en/latest/default_rules/#no-loop-var-prefix

[ericzolf]

Good point. I don't think we need a specific rule though, it should just be highlighted as a special case of the generic rule to prefix vars with the role's name.

[ericzolf]

Do you create a PR for this?

[bontreger]

Not yet, I was brain-dumping as I was going through the ansible lint rules on a client's playbooks and this was a finding in lint that we haven't addressed