Fixed a surprising number of example programs that were passing int arguments

to curl_easy_setopt instead of long.

docs/examples/ftpget.c

@@ -65,7 +65,7 @@ int main(void)
     curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
 
     /* Switch on full protocol/debug output */
-    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
     res = curl_easy_perform(curl);