Tweaked some Rust code for clarity, without changing behavior.

rust/examples/qrcodegen-demo.rs

@@ -166,7 +166,7 @@ fn print_qr(qr: &QrCode) {
 	let border: i32 = 4;
 	for y in -border .. qr.size() + border {
 		for x in -border .. qr.size() + border {
-			let c: char = if qr.get_module(x, y) { '\u{2588}' } else { ' ' };
+			let c: char = if qr.get_module(x, y) { '█' } else { ' ' };
 			print!("{0}{0}", c);
 		}
 		println!();

rust/src/lib.rs

@@ -770,7 +770,7 @@ impl ReedSolomonGenerator {
 	fn new(degree: usize) -> ReedSolomonGenerator {
 		assert!(1 <= degree && degree <= 255, "Degree out of range");
 		// Start with the monomial x^0
-		let mut coefs = vec![0; degree - 1];
+		let mut coefs = vec![0u8; degree - 1];
 		coefs.push(1);
 		
 		// Compute the product polynomial (x - r^0) * (x - r^1) * (x - r^2) * ... * (x - r^{degree-1}),