Git commits in Moodle 1.9.8 by Piers Harding

commit b34b5c7b498caf6ca908dcf62f651b5e0ad116fe
Author: Piers Harding <piers@ompka.net>
Date:   Wed, 10 Feb 2010 01:50:52 +0800
Tag:    v1.9.8

MDL-18202 - fix incorrect substitutions of '_'.