Cache: fixed cache valid slot to reject incorrect statuses. Previously, result of ngx_atoi() was assigned to an ngx_uint_t variable, and errors reported by ngx_atoi() became positive, so the following check in "status < 100" failed to catch them. This resulted in the configurations like "proxy_cache_valid 2xx 30s" being accepted as correct, while they in fact do nothing. Changing type to ngx_int_t fixes this, and such configurations are now properly rejected.

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


cat << END >> $NGX_AUTO_CONFIG_H

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

END