fixed previous commit (no changes)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9271 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/string.h

@@ -727,7 +727,7 @@ public:
   size_t Index(wxChar ch)         const { return Find(ch);  }
     // use Truncate
   wxString& Remove(size_t pos) { return Truncate(pos); }
-  wxString& RemoveLast() { return Truncate(Len() - 1); }
+  wxString& RemoveLast(size_t n = 1) { return Truncate(Len() - n); }
 
   wxString& Remove(size_t nStart, size_t nLen) { return erase( nStart, nLen ); }
 
@@ -1012,6 +1012,7 @@ public:
   void Remove(const wxChar *sz);
     // remove item by index
   void Remove(size_t nIndex);
+  void RemoveAt(size_t nIndex) { Remove(nIndex); }
 
   // sorting
     // sort array elements in alphabetical order (or reversed alphabetical