Passing empty string to StringArrayVar results in array of 1 element

[zchenyu]

package main

import (
    "fmt"

    "github.com/spf13/pflag"
)

func main() {
    var myArray []string
    pflag.StringArrayVar(&myArray, "array", []string{}, "List of strings")
    pflag.Parse()
    fmt.Printf("Array length: %d\n", len(myArray))
    fmt.Printf("Array contents: %v\n", myArray)
}

$ go run spf13.go  --array ""
Array length: 1
Array contents: []

Is there a recommended way for a user to pass an empty array?