Simplified loop ranges without changing visible behavior.

src/io/nayuki/fastqrcodegen/QrCode.java

@@ -218,8 +218,8 @@ public final class QrCode {
 		sb.append("\t<rect width=\"100%\" height=\"100%\" fill=\"#FFFFFF\"/>\n");
 		sb.append("\t<path d=\"");
 		boolean head = true;
-		for (int y = -border; y < size + border; y++) {
+		for (int y = 0; y < size; y++) {
-			for (int x = -border; x < size + border; x++) {
+			for (int x = 0; x < size; x++) {
 				if (getModule(x, y)) {
 					if (head)
 						head = false;