Git commits in Moodle 3.7.x by Abhimanyu Kumar

commit 9fff4ebb0ae78a93ddfa3e4f20581baa8b30b84c
Author: Abhimanyu Kumar <abhimanyukrsingh00@gmail.com>
Date:   Sat, 23 Mar 2019 20:42:44 +0800
Tag:    v3.7.0-beta

MDL-64959 uploaduser: remove leading/trailing spaces from CSV headings