*
* If the result pointer is NULL, a HTTP HEAD request is made instead of GET.
*/
-int http_get_strbuf(const char *url, struct strbuf *result, int options);
+int http_get_strbuf(const char *url, struct strbuf *content_type, struct strbuf *result, int options);
/*
* Prints an error message using error() containing url and curl_errorstr,