Events: fixed copying of old events in poll init. Previously, the code incorrectly assumed "ngx_event_t *" elements instead of "struct pollfd". This is mostly cosmetic change, as this code is never called now.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


cat << END >> $NGX_AUTO_CONFIG_H

#ifndef $have
#define $have  $value
#endif

END