If getaddrinfo() succeeds, then don't try look ups with other flags, even

If getaddrinfo() succeeds, then don't try look ups with other flags, even
if the connect()s failed.  In concert with some resolver fixes in libc,
this lets ntpd be tame()ed

problem isolated by theo, who had fun untangling the libc and libtls
behaviors to place blame for not being able to tame ntpd

ok beck@ deraadt@ jsing@