auth: new default param for ifurlup/ifportup lua functions to control…

[chbruyand]

… default answer (prior to any check)

Short description

Checklist

I have:

• read the CONTRIBUTING.md document
• compiled this code
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)
• checked that this code was merged to master

[Habbie]

Want to write docs and a test?

[chbruyand]

Closing as this doesn't provide anything useful. First call to if*up() function will result in all tests being negative, so we will fallback to use the desired selector on ALL ips (which is the same set as considering all ips up in the first place).

[thestinger]

It's not the same as the case where there are multiple sets though. It uses the combination of all the sets for the fallback instead of the first set. Filed #12789. I think the behavior should just be changed to make all IPs being up and all IPs being down return the same result (selector on first set) without needing an option to control it. I can't think of a use case for the current behavior over that.