Don't log EOF

protocol.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"bytes"
 	"fmt"
+	"io"
 	"log"
 	"net"
 	"strconv"
@@ -101,7 +102,7 @@ func (p *Conn) LocalAddr() net.Addr {
 // before Read()
 func (p *Conn) RemoteAddr() net.Addr {
 	p.once.Do(func() {
-		if err := p.checkPrefix(); err != nil {
+		if err := p.checkPrefix(); err != nil && err != io.EOF {
 			log.Printf("[ERR] Failed to read proxy prefix: %v", err)
 		}
 	})