tool_operate: fix `CURLOPT_SOCKS5_GSSAPI_NEC` type

`CURLOPT_SOCKS5_GSSAPI_NEC` is a long, while `socks5_gssapi_nec` was
made a bool in commit 4ac64eadf6.

Closes https://github.com/curl/curl/pull/10124

src/tool_operate.c

@@ -1939,8 +1939,7 @@ static CURLcode single_transfer(struct GlobalConfig *global,
 
         /* new in curl 7.19.4 */
         if(config->socks5_gssapi_nec)
-          my_setopt_str(curl, CURLOPT_SOCKS5_GSSAPI_NEC,
-                        config->socks5_gssapi_nec);
+          my_setopt_str(curl, CURLOPT_SOCKS5_GSSAPI_NEC, 1L);
 
         /* new in curl 7.55.0 */
         if(config->socks5_auth)