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logtail, net/portmapper, wgengine/magicsock: use fmt.Appendf

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Fixes #5206

Change-Id: I490bb92e774ce7c044040537e2cd864fcf1dbe5a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2022-08-03 21:29:11 -07:00
committed by Brad Fitzpatrick
parent 4aa88bc2c0
commit 5381437664
4 changed files with 4 additions and 7 deletions
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2
logtail/logtail.go
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@ -270,7 +270,7 @@ func (l *Logger) drainPending(scratch []byte) (res []byte) {
if err == io.EOF {
break
} else if err != nil {
b = []byte(fmt.Sprintf("reading ringbuffer: %v", err))
b = fmt.Appendf(nil, "reading ringbuffer: %v", err)
batchDone = true
} else if b == nil {
if entries > 0 {