go.crypto: Update for new crypto/x509 error.
go.crypto: Update for new crypto/x509 error.

R=golang-dev, adg
CC=golang-dev
http://codereview.appspot.com/5674046

dizzyd/go.crypto,xman1101/terminal,tonnerre/golang-go.crypto,polydawn-ports/go.crypto,cmars/go.crypto,dizzyd/go.crypto,cmars/go.crypto,tonnerre/golang-go.crypto,polydawn-ports/go.crypto,drhax9908/go.crypto,isislovecruft/go.crypto,drhax9908/go.crypto,xman1101/terminal,isislovecruft/go.crypto,cmars/sshlurp-go.crypto,cmars/sshlurp-go.crypto