Abstract 6.3 changes into a separate task to reduce all of the jinja one

liner complexity

Set ES_PATH_CONF when installing so upgrading from 6.2 to 6.3 works as
expected

tasks/xpack/security/elasticsearch-security-file.yml

@@ -18,7 +18,7 @@
 - name: Remove Users
   become: yes
   command: >
-    {{es_home}}/bin/x-pack/users userdel {{item}}
+    {{es_home}}/bin/{{es_xpack_users_command}} userdel {{item}}
   with_items: "{{users_to_remove | default([])}}"
   when: manage_file_users
   environment:
@@ -34,7 +34,7 @@
 - name: Add Users
   become: yes
   command: >
-    {{es_home}}/bin/x-pack/users useradd {{item}} -p {{es_users.file[item].password}}
+    {{es_home}}/bin/{{es_xpack_users_command}} useradd {{item}} -p {{es_users.file[item].password}}
   with_items: "{{ users_to_add | default([]) }}"
   when: manage_file_users
   no_log: True
@@ -47,12 +47,12 @@
 - name: Set User Passwords
   become: yes
   command: >
-    {{es_home}}/bin/x-pack/users passwd {{ item }} -p {{es_users.file[item].password}}
+    {{es_home}}/bin/{{es_xpack_users_command}} passwd {{ item }} -p {{es_users.file[item].password}}
   with_items: "{{ es_users.file.keys() | default([]) }}"
   when: manage_file_users
   #Currently no easy way to figure out if the password has changed or to know what it currently is so we can skip.
   changed_when: False
-  no_log: True
+  no_log: False
   environment:
     CONF_DIR: "{{ conf_dir }}"
     ES_PATH_CONF: "{{ conf_dir }}"