#21 how to use --lock-tables=false as a mysqldump option?

[Yves Yoseph]

Hi,
I've been backing up my databases manually using this type of command:
mysqldump --lock-tables=false --add-drop-table -h localhost -u root -p wordpress | bzip2 -c > wordpress_20130311.sql.bz2

and when I tried to use AutoMySQLBackup, it didn't use the same options for mysqldump and the backup process failed. How can I change that so it will not fail?
Thanks,
Yves