sal_uInt16 to size_t

Change-Id: I9928d07c33cdd2b79a48990b0430c314c9ce97be

sw/source/filter/xml/swxml.cxx

@@ -396,7 +396,7 @@ static void lcl_AdjustOutlineStylesForOOo( SwDoc& _rDoc )
     // determine, which outline level has already a style assigned and
     // which of the default outline styles is created.
     const SwTxtFmtColls& rColls = *(_rDoc.GetTxtFmtColls());
-    for ( sal_uInt16 n = 1; n < rColls.size(); ++n )
+    for ( size_t n = 1; n < rColls.size(); ++n )
     {
         SwTxtFmtColl* pColl = rColls[ n ];
         if ( pColl->IsAssignedToListLevelOfOutlineStyle() )