ssh/test: make struct comment match struct name

Change-Id: I9bfd61fe96d2bdaa890379a1a31b7e0f3f2b67ed
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/594435
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
Reviewed-by: Joedian Reid <joedian@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

Author: cuishuang

ssh/test/server_test.go

@@ -14,7 +14,7 @@ type exitStatusMsg struct {
 	Status uint32
 }
 
-// goServer is a test Go SSH server that accepts public key and certificate
+// goTestServer is a test Go SSH server that accepts public key and certificate
 // authentication and replies with a 0 exit status to any exec request without
 // running any commands.
 type goTestServer struct {