Git commits in Moodle 2.8.3 by Patrik Granlöv

commit f9d5676c1002ffb3103a58510600c448fe0f382c
Author: Patrik Granlöv <patrik.granlov@lnu.se>
Date:   Wed, 12 Sep 2012 22:13:43 +0800
Tag:    v2.8.3

MDL-35486 outputlib: Fix typos in comments