Author: Helen Foster
removing backslash
http://git.moodle.org/gw?p=moodle.git;a=commit;h=90699ee515734457d48a9e6ab7de9fbb250659e6
http://github.com/moodle/moodle/commit/90699ee515734457d48a9e6ab7de9fbb250659e6
+ 2.0 en [jserror2,block_tags]