spec: selenium 18n spec fix

Change-Id: Ib47b2099afc1a54d04b9746a7ee482d1d2b47424
Reviewed-on: https://gerrit.instructure.com/32574
Reviewed-by: Bryan Madsen <bryan@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>