added newline to the end of mysql-test/t/system_mysql_db_fix-master.opt

for working on aix and so on..


mysql-test/t/system_mysql_db_fix-master.opt:
  added newline for working aix and so on..

mysql-test/t/system_mysql_db_fix-master.opt

---result-file=system_mysql_db
\ No newline at end of file
+--result-file=system_mysql_db