golang format tools (#1087)

Produced via:
  `gofmt -s -w $(find -path './vendor' -prune -o -path './third_party' -prune -o -type f -name '*.go' -print)`
  `goimports -w $(find -name '*.go' | grep -v vendor | grep -v third_party)`
/assign n3wscott
/cc n3wscott

codegen/cmd/injection-gen/generators/reconciler_controller_stub.go

@@ -18,6 +18,7 @@ package generators
 
 import (
 	"io"
+
 	"k8s.io/gengo/generator"
 	"k8s.io/gengo/namer"
 	"k8s.io/gengo/types"