Problem: a typo in the code. When autocommit, foreign_key_checks,
sql_auto_is_null, or unique_checks changes, it prints "SET", and then a
comma-separated list of assignments. However, it does not print the
assignment to the @@autocommit variable.
Fix: print the @@autocommit variable.


mysql-test/r/mysqlbinlog.result:
  Updated result file since output of mysqlbinlog changed.
mysql-test/r/mysqlbinlog2.result:
  Updated result file since output of mysqlbinlog changed.
mysql-test/r/user_var-binlog.result:
  Updated result file since output of mysqlbinlog changed.
mysql-test/suite/binlog/r/binlog_base64_flag.result:
  Updated result file since output of mysqlbinlog changed.
mysql-test/suite/binlog/r/binlog_stm_ctype_ucs.result:
  Updated result file since output of mysqlbinlog changed.
mysql-test/suite/rpl/r/rpl_row_mysqlbinlog.result:
  Updated result file since output of mysqlbinlog changed.
sql/log_event.cc:
  Just a typo: mysqlbinlog should print the autocommit flag
  when the value of the flag changes.
  Also fixed nearby indentation.