Only send job options once

Only send job options once

If we have numjobs=x set with x higher than 1, the CLI client
prints the first and last job. But for the GUI, we just want
the one notification of an added job.

This fixes the case where we seem to have loaded two jobs,
but it is just one.

Signed-off-by: Jens Axboe <axboe@kernel.dk>