submodule repos on GitHub

[Richard Eisenberg]

Hi devs,

The Newcomers page (https://ghc.haskell.org/trac/ghc/wiki/Newcomers) recommends cloning GHC with

> git clone --recursive git://github.com/ghc/ghc

I believe my students did this with success several weeks ago. But trying it again today leads to trouble with some submodules, e.g.:

> Cloning into '/Users/rae/ltemp/ghc-test/libraries/Cabal'...
> fatal: remote error: 
>   ghc/packages/Cabal is not a valid repository name
>   Email support at github.com for help
> fatal: clone of 'git://github.com/ghc/packages/Cabal.git' into submodule path '/Users/rae/ltemp/ghc-test/libraries/Cabal' failed
> 

Is there something wrong in the internets? Or should we update the Newcomers page?

Thanks,
Richard