Update error message to reflect that curl is always used

ddclient.in

@@ -2502,7 +2502,7 @@ sub curl_cmd {
         67 => "The user name, password, or similar was not accepted and curl failed to log in.",
         77 => "Problem with reading the SSL CA cert (path? access rights?).",
         78 => "The resource referenced in the URL does not exist.",
-       127 => "You requested network access with curl but $system_curl was not found",
+       127 => "$system_curl was not found",
     );
 
     debug("CURL: %s", $system_curl);