[Go] empty select

https://stackoverflow.com/questions/18661602/what-does-an-empty-select-do

select{} // this block forever

i.e In CSP-speak, the empty select is like STOP, a process that never proceeds. This is akin to a self-deadlock and I imagine it doesn't get used all that often. However, the question proposed an interesting and genuine use-case for this pattern. An empty for{} loop is a self-livelock, different because it consumes cpu resources.