into the binlog), SLAVE START -> START SLAVE, error test changes.


client/mysqladmin.c:
  Now that FLUSH TABLES and some other FLUSH go into the binlog, the same commands
  issued from mysqladmin should also go into the binlog. How could I explain to
  a user that "mysql -e 'flush tables'" is not exactly the same as "mysqladmin
  flush-tables" ?? So I replace mysql_refresh() by mysql_query().
  Also SLAVE START -> START SLAVE to make this work with 4.1 (it won't work with
  3.23 anymore).
  Also the code tested for mysql_refresh() < 0 for errors, but this cannot happen :
  - mysql_refresh() calls simple_command()
  - in 4.1 the return type of simple_command() is my_bool, and I have checked the 4.1 libmysql
  code and it returns 0 or 1, not negative values.
  - note that in 4.0 libmysql, simple_command() returns int which can be < 0, but we don't
  care here as we link the 4.1 mysqladmin with the 4.1 libmysql.
  Btw, some other parts of the code already checked
  for mysql_refresh() != 0, not < 0. So now it's homogenous : we always test for != 0
  instead of < 0.