corrected the docs for CURLINFO_FILETIME

.TP

.B CURLINFO_FILETIME

Pass a pointer to a long to receive the remote time of the retrieved

document. If you get 0, it can be because of many reasons (unknown, the server

hides it or the server doesn't support the command that tells document time

etc) and the time of the document is unknown. (Added in 7.5)

document. If you get -1, it can be because of many reasons (unknown, the

server hides it or the server doesn't support the command that tells document

time etc) and the time of the document is unknown. Note that you must tell the

server to collect this information before the transfer is made, by using the

CURLOPT_FILETIME option to \fIcurl_easy_setopt(3)\fP. (Added in 7.5)

.TP

.B CURLINFO_TOTAL_TIME

Pass a pointer to a double to receive the total transaction time in seconds