fn print_hex_compare(print: &str, against: &str, mut stdout: &mut StandardStream) -> PrintResult {
for (p, a) in print.chars().zip(against.chars()) {
if p == a {
fn print_hex_compare(print: &str, against: &str, mut stdout: &mut StandardStream) -> PrintResult {
for (p, a) in print.chars().zip(against.chars()) {
if p == a {