opal/opal-rails — pull request #17 by brandondrew (2013-12-31 00:49:53+00:00)
Title: small grammar fix to indefinite article

Since "Haml" begins with an aspiration (a puff of air, to avoid phonetic terms, as in "horse"), the indefinite article should be "a" not "an" (just as we say "a horse" rather than "an horse").