Git commits in Moodle 2.7.8 by Barry Oosthuizen

commit e5e2a01924630ab9fbf627c59a5a9c0e6a44ccaf
Author: Barry Oosthuizen <barry.oosthuizen@nottingham.ac.uk>
Date:   Fri, 06 Mar 2015 19:13:53 +0800
Tag:    v2.7.8

MDL-33328 enrol_manual: use correct parameter in search function