mmcloughlin: main.go for Gophercon
mmcloughlin: main.go for Gophercon

Change-Id: I1cc844fa35f76fe0da2a34257e307662456e4e25
Reviewed-on: https://go-review.googlesource.com/48905
Reviewed-by: Joe Tsai <7277d7402195d5c2006c89f45718cf82bb3e527f@gmail.com>

golang/scratch