Cleaned up error messages.


mysql-test/mysql-test-run.sh:
  Added option --mysqld to send arguments to mysqld.
sql/ha_innobase.cc:
  Shortended messages a bit to correspond to the rest of MySQL.
sql/mysqld.cc:
  Changed innodb_unix_file_flush_method -> innodb_flush_method
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted