WL-4279 Correctly get the URL in email message.
WL-4279 Correctly get the URL in email message.

When sending our an email message to a student saying that the course is full we were putting the wrong parameter into it which wasn’t getting replaced.
ox-it/wl-course-signup,ox-it/wl-course-signup,ox-it/wl-course-signup,ox-it/wl-course-signup,ox-it/wl-course-signup