Remove " found" from tftp-enum output lines.

scripts/tftp-enum.nse

@@ -193,9 +193,9 @@ action = function(host, port)
   for i, filename in ipairs(filenames) do
     local request_status = check_file_present(host, port, filename)
     if (request_status == FILE_FOUND) then
-      table.insert(results, filename .. " found")
+      table.insert(results, filename)
     end
   end
 
   return stdnse.format_output(true, results)
-end
+end