Loading of users with MariaDB 10.2.10 fails

When Maxscale logs an error that is server specific add the server name to the error:

For Example:
2018-09-20 12:07:55 error : [MySQLAuth] Failed to load users: SELECT command denied to user 'maxscale'@'xxxx' for table 'users'
2018-09-20 12:07:55 error : [MySQLAuth] Failed to load users: SELECT command denied to user 'maxscale'@'xxxx' for table 'users'
2018-09-20 12:07:55 error : [MySQLAuth] Failed to load users: SELECT command denied to user 'maxscale'@'xxxx' for table 'users'

Would be very useful to be:
2018-09-20 12:07:55 error : [MySQLAuth] Failed to load users: SELECT command denied to user 'maxscale'@'xxxx' for table 'users' on server 'xyz'

Please also note changing the table from 'users' to 'user' would also minimize some confusion.