- I made a change in 0d3aec4969 to output a log if a job was aborted
in a before callbacks. I didn't take in consideration that a job
could return a falsy value and thus it would wrongly log
that the job was aborted.
This fixes the problem by checking if the callback chain was halted
rather than the return value of the job.
- ### Problem
ActiveJob will always log "Enqueued MyJob (Job ID) ..." even
if the job doesn't get enqueued through the adapter.
Same problem happens when performing a Job, "Performed MyJob (Job ID) ..." will be logged even when job wasn't performed at all.
This situation can happen either if the callback chain is terminated
(before_enqueue throwing an `abort`) or if an exception is raised.
### Solution
Check if the callback chain is aborted/exception is raised, and log accordingly.
