[PATCH] Move tst-resolv-res_init-multi to xtests

[Florian Weimer]

* Siddhesh Poyarekar via Libc-alpha:

> Tests that need network access may cause false failures due to network
> glitches because of which they are typically added as xtests.  See for
> example posix/tst-getaddrinfo{4,5}.c.  Move tst-resolv-res_init-multi
> also to xtests so that it is not executed in a regular test run.

The comment in the test says that it does not matter whether the lookup
succeeds.  If this test fails, this could point to a real problem.

Thanks,
Florian