We have upgraded OpenOCD to the new SourceForge platform(Allura), part of that change is a move in the git repo url.
original url is:
and this has changed to:
So you will either need to re-clone or manually update your .git/config
git config remote.origin.url git://git.code.sf.net/p/openocd/code should do the trick
Hopefully nothing has broken in the update.