Make sure a meaningful error is returned when the SSH agent client receives a response that is too big. Change-Id: Ied68b2c559a61dede2f3112c4c8143babd385f48 GitHub-Last-Rev: ad65e1b423bb00f2501dfde84040469aef4ee2df GitHub-Pull-Request: golang/crypto#61 Reviewed-on: https://go-review.googlesource.com/c/143058 Reviewed-by: Han-Wen Nienhuys <hanwen@google.com> Run-TryBot: Han-Wen Nienhuys <hanwen@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>