Log events stream when TestEventStreaming fails.

Let the tag event some more time to be emitted.

Signed-off-by: David Calavera <david.calavera@gmail.com>
Upstream-commit: a3056f9f72baf71655a47ac5b891c892d0174ac4
Component: engine

components/engine/integration-cli/docker_cli_build_test.go

@@ -6449,7 +6449,7 @@ func (s *DockerSuite) TestBuildTagEvent(c *check.C) {
 	case ev := <-ch:
 		c.Assert(ev.Status, check.Equals, "tag")
 		c.Assert(ev.ID, check.Equals, "test:latest")
-	case <-time.After(time.Second):
+	case <-time.After(5 * time.Second):
 		c.Fatal("The 'tag' event not heard from the server")
 	}
 }