Merge pull request #13239 from sakateka/zap_raft

etcdserver: add zap.AddCallerSkip in NewRaftLoggerZap

server/etcdserver/zap_raft.go

diff --git a/server/etcdserver/zap_raft.go b/server/etcdserver/zap_raft.go
index e8174f3..55139c0 100644
--- a/server/etcdserver/zap_raft.go
+++ b/server/etcdserver/zap_raft.go
@@ -37,7 +37,8 @@
 
 // NewRaftLoggerZap converts "*zap.Logger" to "raft.Logger".
 func NewRaftLoggerZap(lg *zap.Logger) raft.Logger {
-	return &zapRaftLogger{lg: lg, sugar: lg.Sugar()}
+	skipCallerLg := lg.WithOptions(zap.AddCallerSkip(1))
+	return &zapRaftLogger{lg: skipCallerLg, sugar: skipCallerLg.Sugar()}
 }
 
 // NewRaftLoggerFromZapCore creates "raft.Logger" from "zap.Core"