Fix lint

Signed-off-by: Chun-Hung Tseng <[email protected]>

pkg/proxy/server_test.go

@@ -17,7 +17,6 @@ package proxy
 import (
 	"bytes"
 	"context"
-	"fmt"
 	"io"
 	"log"
 	"net"
@@ -181,7 +180,7 @@ func startHTTPServer(scheme, addr string, tlsInfo transport.TLSInfo, httpServer
 	log.Println("HTTP Server started on", addr)
 	if err := httpServer.ServeTLS(ln, tlsInfo.CertFile, tlsInfo.KeyFile); err != http.ErrServerClosed {
 		// always returns error. ErrServerClosed on graceful close
-		log.Fatalf(fmt.Sprintf("startHTTPServer ServeTLS(): %v", err))
+		log.Fatalf("startHTTPServer ServeTLS(): %v", err)
 	}
 }
 
@@ -398,7 +397,6 @@ func TestServer_Shutdown(t *testing.T) {
 	if err := s.Close(); err != nil {
 		t.Fatal(err)
 	}
-	p = nil
 	time.Sleep(200 * time.Millisecond)
 
 	data := []byte("Hello World!")