Bump dependencies to Kubernetes 1.20

vendor/google.golang.org/grpc/internal/grpclog/prefixLogger.go

@@ -18,10 +18,15 @@
 
 package grpclog
 
+import (
+	"fmt"
+)
+
 // PrefixLogger does logging with a prefix.
 //
 // Logging method on a nil logs without any prefix.
 type PrefixLogger struct {
+	logger DepthLoggerV2
 	prefix string
 }
 
@@ -30,34 +35,47 @@ func (pl *PrefixLogger) Infof(format string, args ...interface{}) {
 	if pl != nil {
 		// Handle nil, so the tests can pass in a nil logger.
 		format = pl.prefix + format
+		pl.logger.InfoDepth(1, fmt.Sprintf(format, args...))
+		return
 	}
-	Logger.Infof(format, args...)
+	InfoDepth(1, fmt.Sprintf(format, args...))
 }
 
 // Warningf does warning logging.
 func (pl *PrefixLogger) Warningf(format string, args ...interface{}) {
 	if pl != nil {
 		format = pl.prefix + format
+		pl.logger.WarningDepth(1, fmt.Sprintf(format, args...))
+		return
 	}
-	Logger.Warningf(format, args...)
+	WarningDepth(1, fmt.Sprintf(format, args...))
 }
 
 // Errorf does error logging.
 func (pl *PrefixLogger) Errorf(format string, args ...interface{}) {
 	if pl != nil {
 		format = pl.prefix + format
+		pl.logger.ErrorDepth(1, fmt.Sprintf(format, args...))
+		return
 	}
-	Logger.Errorf(format, args...)
+	ErrorDepth(1, fmt.Sprintf(format, args...))
 }
 
 // Debugf does info logging at verbose level 2.
 func (pl *PrefixLogger) Debugf(format string, args ...interface{}) {
-	if Logger.V(2) {
-		pl.Infof(format, args...)
+	if !Logger.V(2) {
+		return
 	}
+	if pl != nil {
+		// Handle nil, so the tests can pass in a nil logger.
+		format = pl.prefix + format
+		pl.logger.InfoDepth(1, fmt.Sprintf(format, args...))
+		return
+	}
+	InfoDepth(1, fmt.Sprintf(format, args...))
 }
 
 // NewPrefixLogger creates a prefix logger with the given prefix.
-func NewPrefixLogger(prefix string) *PrefixLogger {
-	return &PrefixLogger{prefix: prefix}
+func NewPrefixLogger(logger DepthLoggerV2, prefix string) *PrefixLogger {
+	return &PrefixLogger{logger: logger, prefix: prefix}
 }