Function normalizeOptional

src/go/plugin/framework/chartengine/compiler.go:451–457

(value string)

}

func normalizeOptional(value string) []string {
	value = strings.TrimSpace(value)
	if value == "" {
		return nil
	}
	return []string{value}
}

func filterEmpty(items []string) []string {
	out := make([]string, 0, len(items))