Internal user shown in audit logs for document read via UI

-Create user with query select and document read roles for travel - sample bucket

-Turn on auditing for document read events

-Login as user and browse to doc editor

-See audit entries naming ns_server as user:

{"timestamp":"2018-07-09T16:59:55.616560Z","peername":"127.0.0.1:54187","sockname":"127.0.0.1:11209","real_userid":{"domain":"memcached","user":"@ns_server"},"bucket":"travel-sample","key":"<ud>airline_10</ud>","id":20488,"name":"document read","description":"Document was read"}