Rename mongodb tasks for consistency

deployment/ansible-role-mongodb/tasks/config_auth.yml

@@ -26,7 +26,7 @@
   service: name={{ mongodb_daemon_name }} state=restarted
   when: root_user_exists|changed or admin_user_exists|changed
 
-- name: create database root user if missing
+- name: create database root user if not present
   mongodb_user:
     database: admin
     name: "{{ item.name }}"
@@ -42,7 +42,7 @@
       }
   when: root_user_exists|changed
 
-- name: create database admin user if missing
+- name: create database admin user if not present
   mongodb_user:
     database: admin
     name: "{{ item.name }}"
@@ -58,7 +58,7 @@
       }
   when: admin_user_exists|changed
 
-- name: create other users
+- name: create other users if not present
   mongodb_user:
     database: "{{ item.database }}"
     name: "{{ item.name }}"