rails4: fix text_helper_spec
rails4: fix text_helper_spec

apparently rails 4 escapes characters differently
may as well just ignore it

refs #CNVS-21596

Change-Id: Ic608504c1e3da21119e5aff1d7d12ae36edbef6c
Reviewed-on: https://gerrit.instructure.com/57938
Tested-by: Jenkins
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
Product-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>
QA-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

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