fix(salt-lint): fix all violations

```
[206] Jinja variables should have spaces before and after: '{{ var_name }}'
snmp/macros.jinja:18
{{ mode }}community     {{ community }}       {{ src }}{{' -V ' + view if view else ''}}

[202] Jinja statement should have spaces before and after: '{% statement %}'
snmp/macros.jinja:21
{% endmacro-%}
```

snmp/macros.jinja

@@ -15,8 +15,8 @@
       {%- set source = [source] %}
     {%- endif %}
     {%- for src in source -%}
-{{ mode }}community     {{ community }}       {{ src }}{{' -V ' + view if view else ''}}
+{{ mode }}community     {{ community }}       {{ src }}{{ ' -V ' + view if view else '' }}
 {%      endfor %}
   {%- endfor -%}
-{% endmacro-%}
+{% endmacro -%}