Properly skip extra SANs when not specified for kubeadm (#1831)

roles/kubernetes/master/tasks/kubeadm-setup.yml

@@ -54,11 +54,11 @@
       {%- if hostvars[host]['access_ip'] is defined %}{{ hostvars[host]['access_ip'] }}{% endif %}
       {{ hostvars[host]['ip'] | default(hostvars[host]['ansible_default_ipv4']['address']) }}
       {%- endfor %}
-      {% if supplementary_addresses_in_ssl_keys is defined %}
-      {% for addr in supplementary_addresses_in_ssl_keys %}
+      {%- if supplementary_addresses_in_ssl_keys is defined %}
+      {%- for addr in supplementary_addresses_in_ssl_keys %}
       {{ addr }}
-      {% endfor %}
-      {% endif %}
+      {%- endfor %}
+      {%- endif %}
   tags: facts
 
 - name: kubeadm | Copy etcd cert dir under k8s cert dir