allowing Certificate to be NOT defined

Former-commit-id: 94d0cdf9

roles/ldapclient/tasks/configLdapClient.yml

@@ -11,6 +11,7 @@
   become: true
   become_user: root
   ignore_errors: true
+  when: ldapCaCertFile is defined
 
 - name: "Copy the CA cert"
   copy: src={{ ldapCaCertSrc }} dest={{ ldapCaCertFile }} owner=root mode=644