Bug#319  if while a non-transactional slave is replicating a transaction possible problem

only testing related: addressing reviewers' comments.

mysql-test/suite/bugs/r/rpl_bug38205.result:
  new results.
mysql-test/suite/bugs/t/rpl_bug38205.test:
  changing output per reviewer's offering.
mysql-test/suite/rpl/r/rpl_start_stop_slave.result:
  new results.
mysql-test/suite/rpl/t/rpl_start_stop_slave.test:
  refining tests for Bug #38205, Bug#319 to start slave with the necessary synchronization;
  changing output per reviewer's offering;
  removing redundant wait for stop.