transfer: avoid insane conversion of time_t

lib/file.c

@@ -464,7 +464,7 @@ static CURLcode file_do(struct connectdata *conn, bool *done)
   }
 
   if(fstated && !data->state.range && data->set.timecondition) {
-    if(!Curl_meets_timecondition(data, data->info.filetime)) {
+    if(!Curl_meets_timecondition(data, (time_t)data->info.filetime)) {
       *done = TRUE;
       return CURLE_OK;
     }

lib/transfer.c

@@ -359,7 +359,7 @@ static void read_rewind(struct connectdata *conn,
  * Check to see if CURLOPT_TIMECONDITION was met by comparing the time of the
  * remote document with the time provided by CURLOPT_TIMEVAL
  */
-bool Curl_meets_timecondition(struct SessionHandle *data, long timeofdoc)
+bool Curl_meets_timecondition(struct SessionHandle *data, time_t timeofdoc)
 {
   if((timeofdoc == 0) || (data->set.timevalue == 0))
     return TRUE;

lib/transfer.h

@@ -47,7 +47,7 @@ CURLcode Curl_readrewind(struct connectdata *conn);
 CURLcode Curl_fillreadbuffer(struct connectdata *conn, int bytes, int *nreadp);
 CURLcode Curl_reconnect_request(struct connectdata **connp);
 CURLcode Curl_retry_request(struct connectdata *conn, char **url);
-bool Curl_meets_timecondition(struct SessionHandle *data, long timeofdoc);
+bool Curl_meets_timecondition(struct SessionHandle *data, time_t timeofdoc);
 
 /* This sets up a forthcoming transfer */
 void