Add gist5408736 package.
Add gist5408736 package.

git-subtree-dir: gists/gist5408736
git-subtree-mainline: e7d3fd86755313542ce70c86e6a5e081d8e7f785
git-subtree-split: aa48fcbc89a42231be013ea04f6ca50aad70c171

shurcooL/go