spec: fix user api spec

Change-Id: I04058d52c5c63124451d9524c89e210fd11bd155
Reviewed-on: https://gerrit.instructure.com/34675
Reviewed-by: Cody Cutrer <cody@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>