Bug #2385 "CREATE TABLE LIKE lacks locking on source and destination table" 
(in sql_table.cc and mysql-test/t/synchronization.test)


mysql-test/t/synchronization.test:
  added sleep to more reliable work
sql/sql_table.cc:
  made some optimization of last patch for 
  Bug #2385 "CREATE TABLE LIKE lacks locking on source and destination table" 
  in mysql_create_like_table