clang: Value stored to 'nSumG' is never read

yikes, well that was a worthwhile exercise

Change-Id: I454c16ce8b307abfdd2db3d2e38f4d36fba429fa

vcl/source/bitmap/bitmapscalesuper.cxx

@@ -925,7 +925,7 @@ void scaleNonPalleteGeneral2(BitmapReadAccess* pAcc, BitmapWriteAccess* pWAcc,
                 nSumB /= nTotalWeightY;
             }
 
-            BitmapColor aColRes((sal_uInt8)nSumR, (sal_uInt8)nSumR, (sal_uInt8)nSumB);
+            BitmapColor aColRes((sal_uInt8)nSumR, (sal_uInt8)nSumG, (sal_uInt8)nSumB);
             pWAcc->SetPixel( nYDst, nXDst++, aColRes );
         }
     }