Author: ferranrecio
MDL-82541 core_courseformat: improve orphan section visualitzation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9795add5278df407c05cd026edb8b9be84388a3b
http://github.com/moodle/moodle/commit/9795add5278df407c05cd026edb8b9be84388a3b
+ 4.5 en [orphansectionwarning,core_courseformat]