coverity#735340 Unchecked return value

Change-Id: I13df98f64ce505a08ba3e8b2582a17f5d202c4d1

vcl/generic/print/printerjob.cxx

@@ -478,7 +478,9 @@ PrinterJob::EndJob()
                 }
             }
             else
-                chmod( aFileName.getStr(), mnFileMode );
+            {
+                (void)chmod( aFileName.getStr(), mnFileMode );
+            }
         }
         if (pDestFILE == NULL)
             pDestFILE = fopen (aFileName.getStr(), "w");