fix(map.jinja): fix salt-lint errors

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

letsencrypt/map.jinja

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # vim: ft=jinja
 
-{## Start with  defaults from defaults.sls ##}
+{#- Start with  defaults from defaults.sls #}
 {% import_yaml 'letsencrypt/defaults.yaml' as defaults %}
 {% import_yaml 'letsencrypt/osfamilymap.yaml' as osfamilymap %}