spec: adjust complex constant example
spec: adjust complex constant example

Fixes http://codereview.appspot.com/5444053/#msg41

R=golang-dev, iant
CC=golang-dev
http://codereview.appspot.com/5478058

Committer: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

tav/go,tav/go,tav/go,tav/go,tav/go,tav/go,tav/go