exp/ssh: fix constant in package documentation
exp/ssh: fix constant in package documentation

R=agl
CC=golang-dev
http://codereview.appspot.com/5030054

Committer: Adam Langley <db68fba232b2c49ed3e9d3081df349dde7b61dfd@golang.org>

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