message: clarify exception message
diff: @@ -68,7 +68,7 @@ SchemaCatalogEntry *Binder::BindCreateFunctionInfo(CreateInfo &info) {
  auto &base = (CreateMacroInfo &)info;
  if (base.function->expression->HasParameter()) {
  - throw BinderException("Macro's do not support parameter expressions!");
  + throw BinderException("Parameter expressions within macro's are not supported!");
  }
  // create macro binding in order to bind the function
  