- Skip tests using chmod when running as root


mysql-test/t/information_schema_chmod.test:
  Use mysqltest builtin "chmode"
mysql-test/t/mysqltest.test:
  Dont run as root - test chmod
mysql-test/t/rpl_rotate_logs.test:
  Use mysqltest builtin "chmode"
  Use 'write_file' and 'chmod' instead of system
mysql-test/t/trigger.test:
  Don't run as root
  Use 'write_file' and 'chmod'
mysql-test/t/varbinary.test:
  Don't run as root