Update test

test/cluster_test.go

@@ -702,25 +702,27 @@ func TestServerPoolUpdatedWhenRouteGoesAway(t *testing.T) {
 		// so try again on failure.
 		var (
 			ds      []string
-			timeout = time.Now().Add(3 * time.Second)
+			timeout = time.Now().Add(5 * time.Second)
 		)
 		for time.Now().Before(timeout) {
-		startCheck:
 			ds = nc.Servers()
 			if len(ds) == len(expected) {
 				m := make(map[string]struct{}, len(ds))
 				for _, url := range ds {
 					m[url] = struct{}{}
 				}
+				ok := true
 				for _, url := range expected {
 					if _, present := m[url]; !present {
-						time.Sleep(15 * time.Millisecond)
-						goto startCheck
+						ok = false
+						break
 					}
 				}
-				// we are good
-				return
+				if ok {
+					return
+				}
 			}
+			time.Sleep(50 * time.Millisecond)
 		}
 		stackFatalf(t, "Expected %v, got %v", expected, ds)
 	}