Fixing a weird case where an empty job file will end up in the cachedir, causing exceptions when the minion is restarted.  This change removed the problem job file.
Fixing a weird case where an empty job file will end up in the cachedir, causing exceptions when the minion is restarted.  This change removed the problem job file.

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt