api/server/router/system: fix info versioning

Signed-off-by: Antonio Murdaca <runcom@redhat.com>
Upstream-commit: 63b5a372037081175ab4ea8f3c7a7bef2195ec0b
Component: engine

components/engine/integration-cli/docker_api_info_test.go

@@ -38,3 +38,15 @@ func (s *DockerSuite) TestInfoAPI(c *check.C) {
 		c.Assert(out, checker.Contains, linePrefix)
 	}
 }
+
+func (s *DockerSuite) TestInfoAPIVersioned(c *check.C) {
+	endpoint := "/v1.20/info"
+
+	status, body, err := sockRequest("GET", endpoint, nil)
+	c.Assert(status, checker.Equals, http.StatusOK)
+	c.Assert(err, checker.IsNil)
+
+	out := string(body)
+	c.Assert(out, checker.Contains, "ExecutionDriver")
+	c.Assert(out, checker.Contains, "not supported")
+}