Fix go lint warnings

codec/encoder.go

@@ -44,6 +44,7 @@ func (w *encResponseWriter) Write(data []byte) (int, error) {
 	return w.enc.Encode(w.ResponseWriter).Write(data)
 }
 
+//NewEncodedResponse returns http.ResponseWriter, that writes with Encoder
 func NewEncodedResponse(w http.ResponseWriter, enc Encoder) http.ResponseWriter {
 	return &encResponseWriter{
 		ResponseWriter: w,

rpc.go

@@ -35,20 +35,28 @@ type (
 		replyType reflect.Type  // type of the response argument
 	}
 
+	//Error is constant error
 	Error string
 
 	// CompressionSelector alias
 	CompressionSelector = codec.CompressionSelector
 )
 
 const (
-	ErrNotAFunction    = Error("method must be function")
-	ErrNotEnoughArgs   = Error("method needs three args: *http.Request, *args, *reply")
-	ErrNotEnoughOut    = Error("method needs one out: error")
-	ErrNotReturnError  = Error("method needs one out: error")
+	//ErrNotAFunction when passed not a function
+	ErrNotAFunction = Error("method must be function")
+	//ErrNotEnoughArgs when passed less than three args
+	ErrNotEnoughArgs = Error("method needs three args: *http.Request, *args, *reply")
+	//ErrNotEnoughOut when method has not output
+	ErrNotEnoughOut = Error("method needs one out: error")
+	//ErrNotReturnError when method out is not error
+	ErrNotReturnError = Error("method needs one out: error")
+	//ErrFirstArgRequest when first arg is not *http.Request
 	ErrFirstArgRequest = Error("method needs first parameter to be *http.Request")
-	ErrSecondArgError  = Error("second argument must be a pointer and must be exported")
-	ErrThirdArgError   = Error("third argument must be a pointer and must be exported")
+	//ErrSecondArgError when 2nd arg is not pointer or not exported
+	ErrSecondArgError = Error("second argument must be a pointer and must be exported")
+	//ErrThirdArgError when 3rd arf is not pointer or not exported
+	ErrThirdArgError = Error("third argument must be a pointer and must be exported")
 )
 
 var (