Minor Description
If the disk on a machine has filled and Lucy attempts to write a lockfile using `Json_spew_json` the write will fail and leave the temporary PID lockfile behind. This can cause the process which wrote the lockfile or a future process with the same PID to be locked out.
My proposed change will move temporary lockfile creation from `Json_spew_json` into `LFLock_Request_IMP` and also attempt to delete the lockfile regardless of whether or not the lockfile was written successfully.