Merge pull request #570 from cimm/duplicate_when_in_letsencrypt

Remove duplicate when statement in Let's Encrypt task

roles/common/tasks/letsencrypt.yml

   shell: cat /etc/letsencrypt/live/{{ domain }}/cert.pem
     /etc/letsencrypt/live/{{ domain }}/chain.pem >
     /etc/letsencrypt/live/{{ domain }}/fullchain.pem
-  when: private_key.changed or certificate.changed or ca_certificate.changed
-  when: ansible_ssh_user == "vagrant"
+  when: (private_key.changed or certificate.changed or ca_certificate.changed) and ansible_ssh_user == "vagrant"
 
 - name: Set permissions on combined SSL public cert
   file: name=/etc/letsencrypt/live/{{ domain }}/fullchain.pem mode=0644