Bug 539585 followup: Fix new instance of "warning: format '%p' expects type 'void*'" in nsTableFrame.cpp. (no review, just fixing one new instance of this problem)

layout/tables/nsTableFrame.cpp

@@ -3479,7 +3479,7 @@ nsTableFrame::DumpRowGroup(nsIFrame* aKidFrame)
         if (cellFrame) {
           PRInt32 colIndex;
           cellFrame->GetColIndex(colIndex);
-          printf("cell(%d)=%p ", colIndex, childFrame);
+          printf("cell(%d)=%p ", colIndex, static_cast<void*>(childFrame));
         }
         childFrame = childFrame->GetNextSibling();
       }