doc: clarify that main's return value may change #727
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In reviewing #714, I got to thinking about process behavior, in particular `main`'s return code. Perhaps we should attribute it some significance (e.g. kill processes where `main` failed somehow, maybe respawn if error > 0, kill < 0). Not necessarily a debate to have today, just a thought to let rattle around. In the meantime, be explicit that main should return 0 for forward compatibility.
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Proposed changes:
[Doc-only]
In reviewing #714, I got to thinking about process behavior, in particular
main's return code. Perhaps we should attribute it some significance (e.g. kill processes wheremainfailed somehow, maybe respawn if error > 0, kill < 0). Not necessarily a debate to have today, just a thought to let rattle around. In the meantime, be explicit that main should return 0 for forward compatibility.