[osx] Automatically agree to the Xcode license
[osx] Automatically agree to the Xcode license

Ref: https://github.com/alrra/dotfiles/issues/10#issuecomment-217668565

EDiLD/dotfiles,girishramnani/dotfiles,christophermoura/dotfiles,newtonne/dotfiles,EDiLD/dotfiles,newtonne/dotfiles,christophermoura/dotfiles,AlbertoElias/dotfiles,zlot/dotfiles,b-boogaard/dotfiles,oddlord/dotfiles,mickael83/ubuntu-dotfiles,wingy3181/dotfiles,wingy3181/dotfiles,AlbertoElias/dotfiles,girishramnani/dotfiles,wingy3181/dotfiles,makabde/dotfiles,zlot/dotfiles,makabde/dotfiles,mickael83/ubuntu-dotfiles,pbrooks/dotfiles