SAK-23888 when notify.email.from.replyable=true the email still comes from no-reply because we were asking UserDirectoryService getUser with a displayId not the internal Sakai user id


git-svn-id: https://source.sakaiproject.org/svn/announcement/trunk@129207 66ffb92e-73f9-0310-93c1-f5514f145a0a