[Merge] lp:~jamesodhunt/upstart/restrict-debug-stanza into lp:upstart

[James Hunt]

James Hunt has proposed merging lp:~jamesodhunt/upstart/restrict-debug-stanza into lp:upstart.

Requested reviews:
  Upstart Reviewers (upstart-reviewers)

For more details, see:
https://code.launchpad.net/~jamesodhunt/upstart/restrict-debug-stanza/+merge/204363

Creating a job with a debug stanza will stop stateful re-exec from working reliably since the child is paused before exec'ing such that it still retains a copy of the parents file descriptors. This is legitimate since that is the whole point of the unofficial debug stanza. Since the debug stanza is only to be used for development, no production job should be using it and in fact no production version of Upstart that supports stateful re-exec can be using it due to the problems it causes with re-exec.

As such, this branch makes the debug stanza a NOP unless upstart was *started* with --debug.
-- 
https://code.launchpad.net/~jamesodhunt/upstart/restrict-debug-stanza/+merge/204363
Your team Upstart Reviewers is requested to review the proposed merge of lp:~jamesodhunt/upstart/restrict-debug-stanza into lp:upstart.
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