omyacid: s/public_keys/public-keys/

omyacid/templates/meta-data.yml

@@ -1,7 +1,7 @@
 instance_id: "iid-{{ inst_name }}"
 local_hostname: "{{ inst_name }}"
 {% if !ssh_pubkeys.is_empty() -%}
-public_keys:
+public-keys:
 {% for key in ssh_pubkeys -%}
 - "{{ key }}"
 {% endfor %}