[docs] [issue20100] epoll docs are not clear with regards to CLOEXEC.

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Old code looked strange after issue18571:

        flags |= EPOLL_CLOEXEC;
        if (flags)
            self->epfd = epoll_create1(flags);
        else

The condition is always true unless EPOLL_CLOEXEC is 0.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20100>
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