Author: Helen Foster
MDL-25205 help string improvement
http://git.moodle.org/gw?p=moodle.git;a=commit;h=fca0c7b9afdd6dab0bdeb46b1beaa7c6d3324f6c
http://github.com/moodle/moodle/commit/fca0c7b9afdd6dab0bdeb46b1beaa7c6d3324f6c
+ 2.0 en [orderandpaging_help,mod_quiz]