* Change host resource to use getent ahosts on Linux
In InSpec 1.31, we changed the `host` resource to use `dig` instead of `getent
hosts` for name resolution because `getent hosts` does not return all entries
(only the first v6 entry if it exists, then the first v4 entry) and we wanted to
keep the Darwin and Linux implementation as close as possible. Unfortunately,
this affected users' ability to do resolution checks for entried stored in their
/etc/hosts file.
This change goes back to using `getent` for Linux and changes to `getent ahosts`
which returns both v4 and v6 records. Additionally, the Darwin provider's dig
implementation was reordered to return v4 addresses before v6 addresses to be
consistent with how `getent ahosts` returns records.
Signed-off-by: Adam Leff <adam@leff.co>
* Update unit tests for resolve_with_getent with proper output
Signed-off-by: Adam Leff <adam@leff.co>
