reformat line so webpage parser updates correctly
Skip the curtain test case if curtain is not enabled and we would not
be able to restore it to its old value later due to running at securelevel
above 0.
Previously this would fail and leave curtain enabled untill next reboot (but
causing further runs of the test to suceed, just to maximize confusion).
This went unnoticed initial since most modular test kernels run with options
INSECURE to allow exercising the kernel module loader.
Tune COPTS for alpha