expvar: fix build

Change-Id: I6ee7aa76673e51576b5a84c512b22a0f8af5b02f
Reviewed-on: https://go-review.googlesource.com/3966
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>

diff --git a/src/expvar/expvar_test.go b/src/expvar/expvar_test.go
index 544e3fbc700c4b550bd6be4f3e506204f74fd479..11e6497b96b0fbb38f16c9ebea048aea21ae83b2 100644 (file)
--- a/src/expvar/expvar_test.go
+++ b/src/expvar/expvar_test.go
@@ -271,7 +271,7 @@ func BenchmarkRealworldExpvarUsage(b *testing.B) {
        // Setup P client/server connections.
        clients := make([]net.Conn, P)
        servers := make([]net.Conn, P)
-       ln, err := net.Listen("tcp", laddr)
+       ln, err := net.Listen("tcp", "127.0.0.1:0")
        if err != nil {
                b.Fatalf("Listen failed: %v", err)
        }