Author: Tim Hunt
MDL-68760 timezones: add string for new timezone America/Nuuk
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c3dd5ccc408ed70cbfcf6006fe56919b0a610799
http://github.com/moodle/moodle/commit/c3dd5ccc408ed70cbfcf6006fe56919b0a610799
+ 3.9 en [america/nuuk,core_timezones]