present: fix get-to-end-of-line code in present's pattern matcher The old code was wrong: it always advanced before checking if we were already at end-of-line.
present: fix get-to-end-of-line code in present's pattern matcher
The old code was wrong: it always advanced before checking
if we were already at end-of-line.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/8876043

Karthikvb/talks,Karthikvb/talks,Karthikvb/talks,Karthikvb/talks,Karthikvb/talks,Karthikvb/talks