Code review comment for lp:~jamesodhunt/upstart/bug-1302117-remerged

This merge proposal is exactly the same as the previous one that was reverted.
The revert reason was failing test_job_process test below:

not ok 139 - with exec call by process after fork
 wrong value for rmdir (dirname), expected 0 got -1
 at tests/test_job_process.c:8767 (test_handler).

It still fails with this merge proposal.