integration-cli: add _test suffix to test file

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

integration-cli/docker_cli_v2_only.go → integration-cli/docker_cli_v2_only_test.go

@@ -123,5 +123,4 @@ func (s *DockerRegistrySuite) TestV1(c *check.C) {
 
 	s.d.Cmd("pull", repoName)
 	c.Assert(v1Repo, check.Equals, 3, check.Commentf("Expected v1 repository access after pull"))
-
 }