CL 571396 introduced quotes around user-provided names in error
messages. Update a test case to match the changed error message.
Change-Id: I3de0ea32f363ac83dcecae164ceab74e28dea086
Reviewed-on: https://go-review.googlesource.com/c/go/+/572555 Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>