Author: Shamim Rezaie
MDL-65509 output: use translated strings when showing a fatal error
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a875f3f5131d6cdbb0de92ed66933bdf5fed5576
http://github.com/moodle/moodle/commit/a875f3f5131d6cdbb0de92ed66933bdf5fed5576
+ 3.8 en [outputbuffer,core_debug]