Author: Jake Dallimore
MDL-68309 overrides: clarify inactive overrides help string
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d3eb1f2f6ed8d37eb7528449c83d3526d133dd45
http://github.com/moodle/moodle/commit/d3eb1f2f6ed8d37eb7528449c83d3526d133dd45
+ 3.9 en [inactiveoverridehelp,mod_assign]
+ 3.9 en [inactiveoverridehelp,mod_lesson]
+ 3.9 en [inactiveoverridehelp,mod_quiz]