Give a hint when option is unknown

diff --git a/src/main.c b/src/main.c
index 4e5cd15f105850d44d63df257003f8c81ca56dd3..069a229e5031c2a1caa45c6b5b458847ed59b976 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -2060,7 +2060,7 @@ static void parse_cmd_opt(int argc, char *argv[])
                        } else if (is_dir_exist(argv[i]) || is_file_exist(argv[i])) {
                                cmd.target = argv[i];
                        } else {
-                               g_print(_("Unknown option\n"));
+                               g_print(_("Unknown option. Try -h or --help for usage.\n"));
                                exit(1);
                        }
                }