Fix lint errors

wrappers/streamcipher.go

@@ -8,6 +8,8 @@ import (
 	"go.uber.org/zap"
 )
 
+// StreamCipher is a wrapper which encrypts/decrypts stream with AES-CTR
+// (as a part of obfuscated2 protocol).
 type StreamCipher struct {
 	encryptor cipher.Stream
 	decryptor cipher.Stream
@@ -32,22 +34,27 @@ func (s *StreamCipher) Write(p []byte) (int, error) {
 	return s.conn.Write(encrypted)
 }
 
+// Logger returns an instance of the logger for this wrapper.
 func (s *StreamCipher) Logger() *zap.SugaredLogger {
 	return s.logger
 }
 
+// LocalAddr returns local address of the underlying net.Conn.
 func (s *StreamCipher) LocalAddr() *net.TCPAddr {
 	return s.conn.LocalAddr()
 }
 
+// RemoteAddr returns remote address of the underlying net.Conn.
 func (s *StreamCipher) RemoteAddr() *net.TCPAddr {
 	return s.conn.RemoteAddr()
 }
 
+// Close closes underlying net.Conn instance.
 func (s *StreamCipher) Close() error {
 	return s.conn.Close()
 }
 
+// NewStreamCipher creates new stream cipher wrapper.
 func NewStreamCipher(conn StreamReadWriteCloser, encryptor, decryptor cipher.Stream) StreamReadWriteCloser {
 	return &StreamCipher{
 		conn:      conn,