From 117cb53bc66413d9a810ebed32383e53416347e3 Mon Sep 17 00:00:00 2001
From: adw1n <adw1n@users.noreply.github.com>
Date: Mon, 7 Jun 2021 12:16:53 +0200
Subject: [PATCH] Fix copying stack setting in logger's Output method (#325)

Minimum example to reproduce the problem:
```go
package main

import (
	"os"

	"github.com/pkg/errors"
	"github.com/rs/zerolog"
	"github.com/rs/zerolog/log"
	"github.com/rs/zerolog/pkgerrors"
)

func main() {
	log.Logger = log.With().Caller().Stack().Logger().Output(zerolog.ConsoleWriter{Out: os.Stderr})
	zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack

	log.Info().Err(errors.New("test")).Send()
}
```
Without my changes `stack` isn't printed.
---
 log.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/log.go b/log.go
index 6bc6a80..4cb7f29 100644
--- a/log.go
+++ b/log.go
@@ -223,6 +223,7 @@ func (l Logger) Output(w io.Writer) Logger {
 	l2 := New(w)
 	l2.level = l.level
 	l2.sampler = l.sampler
+	l2.stack = l.stack
 	if len(l.hooks) > 0 {
 		l2.hooks = append(l2.hooks, l.hooks...)
 	}