Issue 1188 fix nudge, to avoid exception in extreme images

git-svn-id: https://zxing.googlecode.com/svn/trunk@2210 59b500cc-1b3d-0410-9834-0bbf25fbcc57

core/src/com/google/zxing/qrcode/QRCodeReader.java

@@ -138,7 +138,7 @@ public class QRCodeReader implements Reader {
     // Push in the "border" by half the module width so that we start
     // sampling in the middle of the module. Just in case the image is a
     // little off, this will help recover.
-    int nudge = Math.round(moduleSize / 2.0f);
+    int nudge = (int) (moduleSize / 2.0f);
     top += nudge;
     left += nudge;