Add FreeBSD compatibility

openssh/init.sls

@@ -1,10 +1,14 @@
 {% from "openssh/map.jinja" import openssh with context %}
 
 openssh:
+  {% if openssh.server is defined %}
   pkg.installed:
     - name: {{ openssh.server }}
+  {% endif %}
   service.running:
     - enable: True
     - name: {{ openssh.service }}
+  {% if openssh.server is defined %}
     - require:
       - pkg: {{ openssh.server }}
+  {% endif %}