Method PrintDefaults

flag.go:552–555

PrintDefaults prints, to standard error unless configured otherwise, the default values of all defined flags in the set.

()

// PrintDefaults prints, to standard error unless configured
// otherwise, the default values of all defined flags in the set.
func (f *FlagSet) PrintDefaults() {
	usages := f.FlagUsages()
	fmt.Fprint(f.Output(), usages)
}

// defaultIsZeroValue returns true if the default value for this flag represents
// a zero value.