resmoke passes a variety of useful information to jstests via TestData and MongoRunner. Some info which isn't passed through are the locations of the various programs that it's running, ie. what has been specified to --mongo=, --mongod, and so on (or the default values if they have not been specified).

This would improve consistency where jstests need to run one of these programs. Currently such tests have to either hardcode in a leading "./", or try to guess about how the user might want to run the jstest.