A question about some codes

[pathbox]

Hi,
I read the source codes from gracehttp, I don't understand the code:

// set graceful restart env flag
	envs := []string{}
	for _, value := range os.Environ() {
		if value != GRACEFUL_ENVIRON_STRING {
			envs = append(envs, value)
		}
	}
	envs = append(envs, GRACEFUL_ENVIRON_STRING)

In my options, just like:

envs = append(envs, GRACEFUL_ENVIRON_STRING)

Is it enough?

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主要是想把其他可能有的环境变量都带过去

[pathbox]

我明白了，是我之前看错了，谢谢