bytes: fix TrimSpace typo
bytes: fix TrimSpace typo

Fixes issue 1401.

R=golang-dev, agl1
CC=golang-dev
http://codereview.appspot.com/3937041

Committer: Adam Langley <db68fba232b2c49ed3e9d3081df349dde7b61dfd@golang.org>

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