vcl: declare variables seperately on own lines

Change-Id: I27dd89a3a75cfd7b1b52d4982a619d84fcc4020d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/191149
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

vcl/source/pdf/pdfwriterimpl_utils.cxx

@@ -95,7 +95,10 @@ void appendFixedInt( sal_Int32 nValue, OStringBuffer& rBuffer )
         rBuffer.append( '-' );
         nValue = -nValue;
     }
-    sal_Int32 nFactor = 1, nDiv = nLog10Divisor;
+
+    sal_Int32 nFactor = 1;
+    sal_Int32 nDiv = nLog10Divisor;
+
     while( nDiv-- )
         nFactor *= 10;