Fix --tlsverify between the CLI and Swarm.

--tlsverify used to be effective only between Swarm and the engines, but
the authentication was not properly functioning with the CLI.

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

manage.go

@@ -52,6 +52,8 @@ func loadTlsConfig(ca, cert, key string, verify bool) (*tls.Config, error) {
 		}
 		certPool.AppendCertsFromPEM(file)
 		config.RootCAs = certPool
+		config.ClientAuth = tls.RequireAndVerifyClientCert
+		config.ClientCAs = certPool
 	} else {
 		// If --tlsverify is not supplied, disable CA validation.
 		config.InsecureSkipVerify = true