Indentation.

src/QRCode.php

@@ -161,9 +161,8 @@ class QRCode{
 	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
 	 */
 	public function getMatrix(string $data):QRMatrix {
-    //NOTE: data sanitation should be done outside
-    //$data = trim($data);
-
+        //NOTE: input sanitization should be done outside
+        //$data = trim($data);
 		if(empty($data)){
 			throw new QRCodeDataException('QRCode::getMatrix() No data given.');
 		}