ssh/tailssh: avoid user ssh configuration in tests
@@ -265,6 +265,8 @@ func TestSSH(t *testing.T) {
execSSH := func(args ...string) *exec.Cmd {
cmd := exec.Command("ssh",
+ "-F",
+ "none",
"-v",
"-p", fmt.Sprint(port),
"-o", "StrictHostKeyChecking=no",
