 mysql_real_connect picks the Unix login when the user "" is used.  This makes the test non-repeatable when running as root.  So I change to not use the "" user, but a random string which will  always result in the @localhost user being selected by the server.
 mysql_real_connect picks the Unix login when the user "" is used.
 This makes the test non-repeatable when running as root.
 So I change to not use the "" user, but a random string which will
 always result in the @localhost user being selected by the server.


mysql-test/t/rpl_temporary.test:
  mysql_real_connect picks the Unix login when the user "" is used.
  This makes the test non-repeatable when running as root.
  So I change to not use the "" user, but a random string which will
  always result in the @localhost user being selected by the server.

davidl-zend/zenddbi,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,davidl-zend/zenddbi,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,davidl-zend/zenddbi,natsys/mariadb_10.2,ollie314/server,ollie314/server,flynn1973/mariadb-aix,ollie314/server,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,davidl-zend/zenddbi,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,ollie314/server,davidl-zend/zenddbi,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,flynn1973/mariadb-aix,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,ollie314/server,ollie314/server,slanterns/server