Use IPv4 for ntpq if IPv6 not allowed in widget #4074

Similar code here. Shame it was not in a subroutine called from both places, but not about to re-engineer that now:)
Put -4 in the right place in ntpq clockver command #4074

I had pasted it in here between "-c" and "clockvar", that was not good.
That's all I have for #4074 (I hope)