exercism/exercism.io — pull request #1397 by ggilder (2014-02-18 01:37:54+00:00)
Title: Go: Add Histogram type def in word-count test

Running the test gives the user an error that `Histogram` is undefined,
which seems confusing. Especially as a Go newbie, one is likely to
assume there's something wrong with their installation (e.g. is
Histogram a built-in package that I should have?)