loplugin:constparams in filter

Change-Id: Ia7bba27371db1a23a42d77df4c4bfc975fa0366b
Reviewed-on: https://gerrit.libreoffice.org/66770
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/filter/msfilter/msdffimp.hxx

@@ -770,12 +770,12 @@ struct SvxMSDffShapeInfo
         {
             bReplaceByFly   = false;
         }
-    SvxMSDffShapeInfo(SvxMSDffShapeInfo& rInfo):
+    SvxMSDffShapeInfo(const SvxMSDffShapeInfo& rInfo):
         nShapeId( rInfo.nShapeId ),
         nFilePos( rInfo.nFilePos ),
-        nTxBxComp( rInfo.nTxBxComp )
+        nTxBxComp( rInfo.nTxBxComp ),
+        bReplaceByFly( rInfo.bReplaceByFly )
         {
-            bReplaceByFly   = rInfo.bReplaceByFly;
         }
 };