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Dmitriy Vyukov authored
No perf/semantic changes, merely improves code health. There were several questions as to why Once.Do uses atomic.CompareAndSwap to do a store. R=golang-dev, r CC=golang-dev https://golang.org/cl/6208057
8c4c6c41
No perf/semantic changes, merely improves code health. There were several questions as to why Once.Do uses atomic.CompareAndSwap to do a store. R=golang-dev, r CC=golang-dev https://golang.org/cl/6208057