h5bp/html5-boilerplate — pull request #866 by AD7six (2011-11-23 12:24:22+00:00)
Title: git ignore files do not need to ignore ignoring themselves

To ensure the dir exists with git, a file is required - but it can be
completely empty.

Since the git ignore file is already in the repo it is not necessary to
not-ignore it - it is already tracked.

Though trivial these !.gitignore files are being understood by some to
mean that they must contain this exact syntax to ensure an empty folder
exists.