encoding/gob: rename encBuffer.WriteByte to writeByte

Renaming the method makes clear, both to readers and to vet,
that this method is not the implementation of io.ByteWriter.

Working toward making the tree vet-safe instead of having
so many exceptions in cmd/vet/all/whitelist.

For #31916.

Change-Id: I5b509eb7f0118d5f2d3c6e352ff2849cd5a3071e
Reviewed-on: https://go-review.googlesource.com/c/go/+/176110
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/encoding/gob/encode.go b/src/encoding/gob/encode.go
index 5371e7245f..8f8f170c16 100644
--- a/src/encoding/gob/encode.go
+++ b/src/encoding/gob/encode.go
@@ -47,7 +47,7 @@ var encBufferPool = sync.Pool{
 	},
 }
 
-func (e *encBuffer) WriteByte(c byte) {
+func (e *encBuffer) writeByte(c byte) {
 	e.data = append(e.data, c)
 }
 
@@ -106,7 +106,7 @@ func (enc *Encoder) freeEncoderState(e *encoderState) {
 // encodeUint writes an encoded unsigned integer to state.b.
 func (state *encoderState) encodeUint(x uint64) {
 	if x <= 0x7F {
-		state.b.WriteByte(uint8(x))
+		state.b.writeByte(uint8(x))
 		return
 	}