it was returning an array, which was being implicitly joined with #to_s.
but in 1.9, Array#to_s is an alias for Array#inspect, rather than
Array#join
Change-Id: I63f4f64b56b2edab9e5225f118716b9f6ee29d1b
Reviewed-on: https://gerrit.instructure.com/5836
Tested-by: Hudson <hudson@instructure.com>
Reviewed-by: Ryan Shaw <ryan@instructure.com>