[CHANGES]
- Warn about truncation of out-of-range port numbers in
pack_sockaddr_in*
[BUGFIXES]
- Avoid size warnings in leftshift operator (RT129217)
- Don't wrap the now-deprecated addrinfo IDN constants
ALLOW_UNASSIGNED and USE_STD3_ASCII_RULES (RT129660)
- Skip the socketpair AF_UNIX+SOCK_DGRAM tests if the OS claims them
to be unsupported (RT132946)
- Prefer getaddrinfo() to implement inet_aton() because the
alternative gethostbyname() has thread races (RT129189)