This changeset is assumed to stay in 4.1.


client/mysql.cc:
  BUG#16217 forced to introduce a separate mysql client command.
  Feature is backported from 5.0, precisely 
  ChangeSet 1.2034 06/02/09 16:23:09 aelkin@mysql.com
  (under second review at the moment)
mysql-test/r/mysqlbinlog.result:
  changed in 5.0
mysql-test/t/mysqlbinlog.test:
  backported from 5.0. The last part of the test to mimic bug#16217
sql/log_event.cc:
  Inserting exclaiming comment command for mysql client made differently than in 5.0.
  Parsing still is cheap enough not to think to modify server code instead.