Event connect: don't penalize AF_INET6 connections.
Event connect: don't penalize AF_INET6 connections.

Problems with setsockopt(TCP_NODELAY) and setsockopt(TCP_NOPUSH), as well
as sendfile() syscall on Solaris, are specific to UNIX-domain sockets.
Other address families, i.e. AF_INET and AF_INET6, are fine.

firebase/nginx,firebase/nginx,hy0kl/nginx,firebase/nginx,hy0kl/nginx,hy0kl/nginx,firebase/nginx