use truncate table
sql/slave.cc
    fixed race condition on server shutdown
sql/sql_repl.cc
    fixed uninitialized use of io_cache


mysql-test/t/rpl_sporadic_master.test:
  use truncate table
sql/slave.cc:
  fixed race condition on server shutdown
sql/sql_repl.cc:
  fixed uninitialized use of io_cache