1 files changed, 3 insertions, 3 deletions

diff --git a/plugins/negate.c b/plugins/negate.c
index a11558d..c76f5ca 100644
--- a/plugins/negate.c
+++ b/plugins/negate.c
@@ -234,17 +234,17 @@ process_arguments (int argc, char **argv)
 
         while (1) {
 #ifdef HAVE_GETOPT_H
-                c = getopt_long (argc, argv, "+?hVt:",
+                c = getopt_long (argc, argv, "hVt:",
                                  long_options, &option_index);
 #else
-                c = getopt (argc, argv, "+?hVt:");
+                c = getopt (argc, argv, "hVt:");
 #endif
                 if (c == -1 || c == EOF)
                         break;
 
                 switch (c) {
                 case '?':     /* help */
-                        usage2 ("Unknown argument", optarg);
+                        usage3 ("Unknown argument", optopt);
                 case 'h':     /* help */
                         print_help ();
                         exit (EXIT_SUCCESS);