Expose P4PASSWD in environment
When this box is checked hudson will add the P4PASSWD environment value to the process environment. This can help scripts that need to perform Perforce command operations succeed. If tickets are used, P4TICKET will be set with the value of the ticket as well.
NOTE: This is a serious security risk if environment values are printed in log files and you should consider alternative ways for providing the credentials to command line tools that need them.