Fix mysql-test failure in the 5.0 tree on Aug 23: label seems to be a reserved word in 5.0, and we to use it a s a column name we must but it inside backticks


mysql-test/t/innodb.test:
  Fix mysql-test failure in the 5.0 tree on Aug 23: label seems to be a reserved word in 5.0, and we to use it a s a column name we must but it inside backticks
mysql-test/r/innodb.result:
  Fix mysql-test failure in the 5.0 tree on Aug 23: label seems to be a reserved word in 5.0, and we to use it a s a column name we must but it inside backticks