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7632c4585f
This rather naively fixes an error observed where a processes stdio streams are not written to when there is an error upon starting up the process, such as when the executable doesn't exist within the container's rootfs. Before the "fix", when an error occurred on start, `terminate` is called immediately, which calls `cmd.Process.Kill()`, then calling `Wait()` on the process. In some cases when this `Kill` is called the stdio stream have not yet been written to, causing non-deterministic output. The error itself is properly preserved but users attached to the process will not see this error. With the fix it is just calling `Wait()` when an error occurs rather than trying to `Kill()` the process first. This seems to preserve stdio. Signed-off-by: Brian Goff <cpuguy83@gmail.com>