Author: Tim Hunt
MDL-26636 fix typo in language string.
Thanks to Luis de Vasconcelos.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b302591de88462529927a3e0ad2701da29425d18
http://github.com/moodle/moodle/commit/b302591de88462529927a3e0ad2701da29425d18
+ 2.0 en [attemptalreadyclosed,mod_quiz]