mitchellh/vagrant — comment on commit f1d5fe27ab831eb5f0fdeabd37434ae3d0b0b8e8
File:  line 0
By mitchellh:

One of my personal quirks with Ruby is my dislike of "unless" After programming for any amount of time, I feel like the "if !" pattern is more clear to people. I've made too many logic mistakes with "unless"