Re-clone the cmark repository


We have made the swift-cmark repository an actual GitHub fork of the
upstream cmark repository.

When running build-script, you might see a message like this:

You have an old copy of the cmark repository.

You need to remove it and clone again:

$ rm -rf <src>/cmark
$ <src>/swift/utils/update-checkout --clone

Please run those commands and they will bring your repository up to
date. Sorry for the disruption.



(j){printf("%d\n",i);}}} /*Dmitri Gribenko <>*/