CURLOPT_DNS_CACHE_TIMEOUT -1 argument process regression

[ajax16384]

b059f7d introduces new way of processing CURLOPT_DNS_CACHE_TIMEOUT option with function "setopt_set_timeout_sec" .

According to document

curl/docs/libcurl/opts/CURLOPT_DNS_CACHE_TIMEOUT.md

Line 35 in 5d32c4f

disable caching, or set to -1 to make the cached entries remain forever. By

where is special -1 value (remain cache entries forever) for this option and new implentation will disallow to set it with CURLE_BAD_FUNCTION_ARGUMENT result.

  if(secs < 0)
    return CURLE_BAD_FUNCTION_ARGUMENT;

I think it might be serious regression, @bagder please fix this issue.

curl/libcurl version

curl 8.16+

operating system

windows

[ajax16384]

thanks