Sharp of you to notice that I changed this. It occurred to me that `rawAsap` only calls `requestFlush` when `flushing` is false. But now that I think about this again, I recall that the Node.js `asap` also calls `requestFlush` to defibrillate `asapRaw` if it retches up an exception which *then* gets handled by the domain or process error event handlers. So, I might need to restore the original.