fix message delivery in ruby 2

Change-Id: I9f087757431d69e9d0fb1c1890f05c89c141fb7a
Reviewed-on: https://gerrit.instructure.com/36845
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jacob Fugal <jacob@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>