refine the log of TCP only mode

src/redir.c

@@ -768,11 +768,15 @@ int main(int argc, char **argv)
 
     // Setup UDP
     if (mode != TCP_ONLY) {
-        LOGI("udprelay enabled");
+        LOGI("UDP relay enabled");
         init_udprelay(local_addr, local_port, listen_ctx.remote_addr[0],
                       get_sockaddr_len(listen_ctx.remote_addr[0]), m, listen_ctx.timeout, NULL);
     }
 
+    if (mode == UDP_ONLY) {
+        LOGI("TCP relay disabled");
+    }
+
     LOGI("listening at %s:%s", local_addr, local_port);
 
     // setuid

src/server.c

@@ -1328,7 +1328,11 @@ int main(int argc, char **argv)
     }
 
     if (mode != TCP_ONLY) {
-        LOGI("udprelay enabled");
+        LOGI("UDP relay enabled");
+    }
+
+    if (mode == UDP_ONLY) {
+        LOGI("TCP relay disabled");
     }
 
     // setuid

src/tunnel.c

@@ -827,12 +827,16 @@ int main(int argc, char **argv)
 
     // Setup UDP
     if (mode != TCP_ONLY) {
-        LOGI("udprelay enabled");
+        LOGI("UDP relay enabled");
         init_udprelay(local_addr, local_port, listen_ctx.remote_addr[0],
                       get_sockaddr_len(listen_ctx.remote_addr[0]),
                       tunnel_addr, m, listen_ctx.timeout, iface);
     }
 
+    if (mode == UDP_ONLY) {
+        LOGI("TCP relay disabled");
+    }
+
     LOGI("listening at %s:%s", local_addr, local_port);
 
     // setuid