Ref: https://github.com/saltstack-formulas/packages-formula/pull/74

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "git ls-files -z firewalld | xargs --null -I '()' find '()' -type f -print0 | xargs --null sed --in-place --regexp-extended 's#\"firewalld/#\"./#g;s#- firewalld\\.#- .#;'",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [],
 "pwd": "."
}
^^^ Do not change lines above ^^^

While the default maps are mostly empty this sets the groundwork for
distribution specific defaults. The layout is based on the formula
template.

BREAKING CHANGE: `map.jinja` has been upgraded from using `pillar.get`
to `config.get`.

If the formula was ran on a system that reported an os_family that
wasn't one of "Debian", "RedHat", "Arch", "Suse" then the map.jinja
template would fail to render with "'NoneType' is not iterable.

This occurs because grains.filter_by will return None when it fails
match the grain to the input dictionary. The value is then blindly
passed into a dict.update() which causes the failure.

In this patch we ensure that the default values, as defined in
defaults.yaml, are always applied when grain matching fails.

```bash
Examining firewalld/map.jinja of type state
[209] Jinja comment should have spaces before and after: {# comment #}
firewalld/map.jinja:4
{## Start with  defaults from defaults.yaml ##}

[209] Jinja comment should have spaces before and after: {# comment #}
firewalld/map.jinja:7
{##

[201] Trailing whitespace
firewalld/map.jinja:16
  }, grain='os_family', merge=salt['pillar.get']('firewalld:lookup'))

[209] Jinja comment should have spaces before and after: {# comment #}
firewalld/map.jinja:19
{## Merge the flavor_map to the default settings ##}

[209] Jinja comment should have spaces before and after: {# comment #}
firewalld/map.jinja:22
{## Merge in salt:lookup pillar ##}
```