Make sure branch name can't be interpreted as a command.
Make sure branch name can't be interpreted as a command.

see:

* https://github.com/njhartwell/pw3nage
* https://github.com/git/git/commit/8976500cbbb13270398d3b3e07a17b8cc7bff43f
* https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9938

davestephens/dotfiles,unicell/dotfiles,junjizhi/dotfiles-1,CodisRedding/dotfiles,unicell/dotfiles,whizzzkid/dotfiles,montyubuntu/dotfiles,whizzzkid/dotfiles,jesperronn/cowboy-dotfiles,davestephens/dotfiles,ekilmer/dotfiles,CodisRedding/dotfiles,davestephens/dotfiles,drzax/dotfiles,cowboy/dotfiles,jesperronn/cowboy-dotfiles,ricardorsierra/dotfiles,drzax/dotfiles,ricardorsierra/dotfiles,tkruse/dotfiles,whizzzkid/dotfiles,cowboy/dotfiles,montyubuntu/dotfiles,junjizhi/dotfiles-1,jesperronn/cowboy-dotfiles,ekilmer/dotfiles,ricardorsierra/dotfiles,ekilmer/dotfiles,CodisRedding/dotfiles,tkruse/dotfiles,cowboy/dotfiles,austinrivas/dotfiles,montyubuntu/dotfiles,drzax/dotfiles,ricardorsierra/dotfiles,unicell/dotfiles,jesperronn/cowboy-dotfiles,junjizhi/dotfiles-1,cowboy/dotfiles,junjizhi/dotfiles-1,austinrivas/dotfiles,davestephens/dotfiles,unicell/dotfiles,CodisRedding/dotfiles,whizzzkid/dotfiles,montyubuntu/dotfiles