torsocks's getaddrinfo() is broken.

torsocks's getaddrinfo() implementation does not respect AI_NUMERICHOST.

This is wrong because it will do the resolution anyway, and things that expect to be able to use getaddrinfo() as a super inet_pton() break.

The correct thing to do is to check if the string is an address and return EAI_NONAME if it's not, without doing the tor resolution.

With this, #15497 and #13294 all fixed, aria2c actually works with torsocks again, as long as async dns is disabled. Yay.