Slice option, required and ini file - fails even if required option is specified in ini file

[raghur]

define a slice option as required
read ini file containing said option with a value
Do not specify the option on the cli.

Fails with - 'required option x not specified'
Secondary - if option is specified on CLI, it replaces the option in the ini file (instead of appending)
parseAsDefault does not seem to matter.

Updated 06 dec 2019 - edited to reflect that replacing option is the correct behavior

[raghur]

func TestIniRequiredSlice_ShouldNotNeedToBeSpecifiedOnCli(t *testing.T) {
	type options struct {
		Items []string `long:"item" required:"true"`
	}
	var opts options
	ini := `
[Application Options]
item=abc`
	args := []string{}

	parser := NewParser(&opts, Default)
	inip := NewIniParser(parser)

	inip.Parse(strings.NewReader(ini))
	inip.ParseAsDefaults = false
	_, err := parser.ParseArgs(args)
	if err != nil {
		t.Fatalf("Unexpected failure: %v", err)
	}

}