Optimized code

[feyounger]

What is the problem you're trying to solve

The array append operation can be performed consecutively，Make code cleaner。

	for _, ts := range job.Spec.Tasks {
		// TODO(k82cn): The splitter and the prefix of env should be configurable.
		formateENVKey := strings.Replace(ts.Name, "-", "_", -1)
		envNames = append(envNames, fmt.Sprintf(EnvTaskHostFmt, strings.ToUpper(formateENVKey)))
		envNames = append(envNames, fmt.Sprintf(EnvHostNumFmt, strings.ToUpper(formateENVKey)))
	}

Describe the solution you'd like

It should be so

	for _, ts := range job.Spec.Tasks {
		// TODO(k82cn): The splitter and the prefix of env should be configurable.
		formateENVKey := strings.Replace(ts.Name, "-", "_", -1)
		envNames = append(envNames, fmt.Sprintf(EnvTaskHostFmt, strings.ToUpper(formateENVKey)),fmt.Sprintf(EnvHostNumFmt, strings.ToUpper(formateENVKey)))
	}

Additional context

No response

[feyounger]

/assign