socket leak on tcpconnect() timeout

[majek]

If I read this code right:

libmill/tcp.c

Line 209 in 2dd13ae

/* Connect to the remote endpoint. */

    int rc = connect(s, (struct sockaddr*)&addr, mill_iplen(addr));
    if(rc != 0) {
        mill_assert(rc == -1);
        if(errno != EINPROGRESS)
            return NULL;
        rc = fdwait(s, FDW_OUT, deadline);
        if(rc == 0) {
            errno = ETIMEDOUT;
            return NULL;
        }

On fdwait() timeout, the "s" never gets "closed()".