Add newlines around .gitignore and append
Add newlines around .gitignore and append

We add newlines because otherwise if someone has a .gitignore
(or a script that modifies .gitignore) and we append, or they
append, some lines might get clobbered.

sandstorm-io/vagrant-spk,sandstorm-io/vagrant-spk,dwrensha/vagrant-spk,dwrensha/vagrant-spk,ndarilek/vagrant-spk,sandstorm-io/vagrant-spk,ndarilek/vagrant-spk,ndarilek/vagrant-spk,dwrensha/vagrant-spk