(rsock_addrinfo): renamed from sock_addrinfo.
(rsock_getaddrinfo): renamed from sock_getaddrinfo.
(rsock_socket): renamed from ruby_socket.
(rsock_sock_s_socketpair): renamed from sock_s_socketpair.
(rsock_connect): renamed from ruby_connect.
* ext/socket/socket.c (sock_listen): make it static.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22686 b2dd03c8-39d4-4d8f-98ff-823fe69b080e