fixed a reference

docs/curl.1

@@ -143,7 +143,7 @@ If this option is used several times, each occurrence will toggle it on/off.
 .IP "--connect-timeout <seconds>"
 Maximum time in seconds that you allow the connection to the server to take.
 This only limits the connection phase, once curl has connected this option is
-of no more use. See also the \fI--max-time\fP option.
+of no more use. See also the \fI-m/--max-time\fP option.
 
 If this option is used several times, the last one will be used.
 .IP "-c/--cookie-jar <file name>"