This change is an attempt to address failures like the one at https://travis-ci.org/jtdaugherty/vty/jobs/660259959 that give rise to the "Prelude.read: no parse" errors. Although that may not seem like the error one would expect, see these resources for details on why I think this is the "fix" for this problem: * https://stackoverflow.com/questions/39310043/getting-prelude-read-no-parse-error-when-using-detailed-0-9-tests-with-cabal * https://github.com/haskell/cabal/pull/3527