all: fix some comments

Change-Id: Ia0410f1f3bb0a9ee68c6dbe1e6f62f65f9e00955
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/477755
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Run-TryBot: shuang cui <imcusg@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/openpgp/packet/compressed.go b/openpgp/packet/compressed.go
index e8f0b5c..353f945 100644
--- a/openpgp/packet/compressed.go
+++ b/openpgp/packet/compressed.go
@@ -60,7 +60,7 @@
 	return err
 }
 
-// compressedWriterCloser represents the serialized compression stream
+// compressedWriteCloser represents the serialized compression stream
 // header and the compressor. Its Close() method ensures that both the
 // compressor and serialized stream header are closed. Its Write()
 // method writes to the compressor.
diff --git a/ssh/agent/server.go b/ssh/agent/server.go
index 6e7a1e0..9a769de 100644
--- a/ssh/agent/server.go
+++ b/ssh/agent/server.go
@@ -20,7 +20,7 @@
 	"golang.org/x/crypto/ssh"
 )
 
-// Server wraps an Agent and uses it to implement the agent side of
+// server wraps an Agent and uses it to implement the agent side of
 // the SSH-agent, wire protocol.
 type server struct {
 	agent Agent
diff --git a/ssh/connection.go b/ssh/connection.go
index 35661a5..8f345ee 100644
--- a/ssh/connection.go
+++ b/ssh/connection.go
@@ -97,7 +97,7 @@
 	return c.sshConn.conn.Close()
 }
 
-// sshconn provides net.Conn metadata, but disallows direct reads and
+// sshConn provides net.Conn metadata, but disallows direct reads and
 // writes.
 type sshConn struct {
 	conn net.Conn