net/rpc/jsonrpc: use strings.Builder

Change-Id: I251f734adbaf83aa03e3f4f37add4e116f5af093
Reviewed-on: https://go-review.googlesource.com/c/go/+/428271
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>

diff --git a/src/net/rpc/jsonrpc/all_test.go b/src/net/rpc/jsonrpc/all_test.go
index f4e1278d03ef5f167453adef4421081e4ea580dd..e2ccdfc6fb8e49bef247752d2c572e37763c0c90 100644 (file)
--- a/src/net/rpc/jsonrpc/all_test.go
+++ b/src/net/rpc/jsonrpc/all_test.go
@@ -5,7 +5,6 @@
 package jsonrpc
 
 import (
-       "bytes"
        "encoding/json"
        "errors"
        "fmt"
@@ -262,7 +261,7 @@ func TestMalformedOutput(t *testing.T) {
 }
 
 func TestServerErrorHasNullResult(t *testing.T) {
-       var out bytes.Buffer
+       var out strings.Builder
        sc := NewServerCodec(struct {
                io.Reader
                io.Writer