replaced tabs with spaces

removed trailing whitespace

the code more curl-style

curl.h, adjusting auto-makefiles include path, to enhance portability to
OS's without an orthogonal directory tree structure such as OS/400.

new and non-standard one

*_socket_all() and *_socket() aren't used at all but only *_socket_action()
is.

examples that I found in the FreeBSD ports system.

  enabling this feature with CURLOPT_CERTINFO for a request using SSL (HTTPS
  or FTPS), libcurl will gather lots of server certificate info and that info
  can then get extracted by a client after the request has completed with
  curl_easy_getinfo()'s CURLINFO_CERTINFO option. Linus Nielsen Feltzing
  helped me test and smoothen out this feature.

  Unfortunately, this feature currently only works with libcurl built to use
  OpenSSL.

  This feature was sponsored by networking4all.com - thanks!

header replacing an internal one

to have a curl_off_t data type no longer gated to off_t.

and cookie_interface.c.

to curl_easy_setopt instead of long.

to be more descriptive and finally set VERBOSE mode to 1 by default