[Merge] lp:~stgraber/upstart/upstart-fix-respawn into lp:upstart

[Steve Langasek]

Review: Needs Fixing

Locally applying the changes to init/tests/test_job_process.c without the changes to the code, the test suite still passes; so the added test case clearly doesn't actually check for the bug in question and avoid regressing this particular code path.

Needs a test case involving a job with both an exec line and shell chars.
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https://code.launchpad.net/~stgraber/upstart/upstart-fix-respawn/+merge/172420
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