Author: Gerard (Gerry) Caulfield
MDL-31107 Fixing instaces of below where it is written as bellow (two L's)
http://git.moodle.org/gw?p=moodle.git;a=commit;h=74e6179ab33a9f9a1b8533576f669f90e6ba3ad4
http://github.com/moodle/moodle/commit/74e6179ab33a9f9a1b8533576f669f90e6ba3ad4
+ 2.1 en [printintroexplain,mod_url]