The code works without the newline, but it looks funny:

func _cgoexp_15afe6549f62_GoFn(a unsafe.Pointer, n int32) {	fn := GoFn

This adds a newline after the '{'.

Change-Id: I6c465abe16f47924426d1b22b91004b3a3586ebd
Reviewed-on: https://go-review.googlesource.com/16612
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>