Scripts don't support mirrors with https protocol in url

[liback]

When selecting what mirror to choose the common pattern is like below, which won't match https. The installer automatically chooses another mirror when selecting a https one.

mirror=$(grep "^$number=[fhtp]\{3,4\}://[^ ]*$" nquake.ini | cut -d "=" -f2)

Should be as follows (s added to allowed chars and 5 instead of 4 max chars for protocol part)

mirror=$(grep "^$number=[fhtps]\{3,5\}://[^ ]*$" nquake.ini | cut -d "=" -f2)

Workaround is to define them as http as they will redirect to https anyway (can fix the script of course but for existing installations it's not really practical)