Ignore content length patch

[Pranav D. <pra...@gm...>]

Hi!

I needed to ignore the content length for certain URLs (videos) for my test
case. Without it curl-loader will report it as an error. I have attached a
small patch for that. I thought it might be useful to someone else. It
basically does this for the specified URL.

curl_easy_setopt (handle, CURLOPT_IGNORE_CONTENT_LENGTH, 1);

I have tested it a bit with my testbed and it seems to work as expected, so
if you find any problems or if I have missed something please let me know.

Thanks
-- Pranav