In case anybody would ever have the need to pull ALL KiCad repositories and be sure to catch all, here's how:
$ curl -s https://api.github.com/orgs/KiCad/repos?per_page=1000 | grep "svn_url" | grep ".pretty" | cut -d " " -f 6 | sed -e "s/\"\(.*\)\".*/\1/g" | sort | while read line; do git clone $line; done
This clones all available .pretty git repositories.
I prefer this approach over the premade lists that circulate around as this is always up to date ...
Modify: Corrected the script as it was mangled by the blog. Added support for direct cloning