user/shadow.go
func LookupShadow(name string) (*Shadow, error) {
	entries, err := LookupInShadow(S_NAME, name, 1)
	if err != nil {
		return nil, err
	}

	return entries[0], err
}
func LookupShadow(name string) (*Shadow, error) {
	entries, err := LookupInShadow(S_NAME, name, 1)
	if err != nil {
		return nil, err
	}

	return entries[0], err
}
// LookupShadow looks for the entry for the given user name.