Submitting a patch for hsc2hs

[Ryan Scott]

Hi Erik,

I'm not sure if the hsc2hs repo [1] has "official" Phabricator
integration, but what I did when I submitted a patch to hsc2hs was:

1. Commit your changes
2. Because the hsc2hs repo doesn't have an .arcconfig file, you have
to manually point arcanist to the right URL by running:

    arc diff --conduit-uri=https://phabricator.haskell.org

Ryan S.
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[1] http://git.haskell.org/hsc2hs.git