.gitmodules: use "git" protocol instead of "http".
.gitmodules: use "git" protocol instead of "http".

This should result in better performance and avoids failure if git was
built without http support (missing libcurl headers).

scorpiovn/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles