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Git commits in Moodle 2.8.x by Lars Anderson
commit e4d7edbf4f564a1cebf4fe1ce92cb04f19a4088a Author: Lars Anderson <lsa@its.aau.dk> Date: Wed, 25 Mar 2015 22:29:44 +0800 Tag: v2.8.9 MDL-49561 core_calendar: Fix ical export for events with no duration