third argument \fBMUST\fP be a pointer to a long, a pointer to a char *, a
pointer to a struct curl_slist * or a pointer to a double (as this
documentation describes further down). The data pointed-to will be filled in
-accordingly and can be relied upon only if the function returns CURLE_OK.
-This function is intended to get used AFTER a performed transfer, all results
-from this function are undefined until the transfer is completed.
+accordingly and can be relied upon only if the function returns CURLE_OK. Use
+this function AFTER a performed transfer if you want to get transfer- oriented
+data.
You should not free the memory returned by this function unless it is
explictly mentioned below.