fixed check for a method named 'field_names' which doesn't exist to 'list_fields' which is the correct method.

http://codeigniter.com/bug_tracker/bug/5787/
2 files changed
tree: 7a070a64e3c45ca0da442e74dca4a4394bc3b477
  1. index.php
  2. license.txt
  3. system/
  4. user_guide/