no need to construct a new object in SfxIntegerListItem::operator==

looks like an obvious typo

Change-Id: Icea0952ec8203725cf5ba1ec90bdddd82eca7b3c
Reviewed-on: https://gerrit.libreoffice.org/51562Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

svl/source/items/ilstitem.cxx

@@ -55,7 +55,7 @@ bool SfxIntegerListItem::operator==( const SfxPoolItem& rPoolItem ) const
     if ( dynamic_cast< const SfxIntegerListItem* >( &rPoolItem) ==  nullptr )
         return false;
 
-    const SfxIntegerListItem rItem = static_cast<const SfxIntegerListItem&>(rPoolItem);
+    const SfxIntegerListItem & rItem = static_cast<const SfxIntegerListItem&>(rPoolItem);
     return rItem.m_aList == m_aList;
 }