Bug #6391 binlog-do-db rules ignored

Description:
Situation: Running binary logging with my.cnf commands:

log-bin=/mysql/logs/logbin
binlog-do-db=shakti
binlog-do-db=prometheus

then, using the mysql command line client, without selecting a database, issue the command:

create database bob;

The create database command is written to the binlog, in contradiction to the rules specified at:

http://dev.mysql.com/doc/mysql/en/Binary_log.html

This breaks replication if another database 'bob' exists on a slave that is replicating from this master.

How to repeat:
As above

Suggested fix:
Change the code to follow the rules specified at:
http://dev.mysql.com/doc/mysql/en/Binary_log.html

Verified with 4.0.23-debug-log

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