Bugfixes:
* url: Improve CURLOPT_PROXY_CAPATH error handling
* urldata: include curl_sspi.h when Windows SSPI is enabled
* formdata: check for EOF when reading from stdin
* tests: Set CHARSET & LANG to UTF-8 in 1035, 2046 and 2047
* url: Default the proxy CA bundle location to CURL_CA_BUNDLE
* rand: added missing #ifdef HAVE_FCNTL_H around fcntl.h header
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/curl?expand=0&rev=186
