Fix exports to user's dotfile
Fix exports to user's dotfile

- Ensure that environment variables wont be duplicated if role is run multiple times with different settings. Good example of this would be first pass install without TLS and then second pass install with TLS.
- Replace `become_user` by `owner`+`group` directives. For some reason trying to become "vault" was bugging for me. Better to just set the file ownershipt on the file from the root account IMO.

brianshumate/ansible-vault