gofmt: no need for lexical compare of src and res (optimization)
gofmt: no need for lexical compare of src and res (optimization)

R=r
CC=golang-dev
http://codereview.appspot.com/4130046

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang