Author: Rohan Khajuria
MDL-59227 course: add (copy) to duplicated modules
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e3723892512ef4d0a5f4dfbb9c1b2b53646f5cfb
http://github.com/moodle/moodle/commit/e3723892512ef4d0a5f4dfbb9c1b2b53646f5cfb
+ 3.6 en [duplicatedmodule,core]