Make unknown -x arguments into an error.

diff --git a/main.c b/main.c
index 57c0a235fb881fd99c457e7b0d19d893f2f1964c..ac224e530c35d0c47f2ef834dc5a34002b39f1c8 100644 (file)
--- a/main.c
+++ b/main.c
@@ -169,7 +169,9 @@ main(int argc, char *argv[])
                                        fvecs->f_process();
                                        fvecs->f_deinit();
                                        free_filter_vec(fvecs);
-                               } 
+                               }  else {
+                                       fatal("Unknown filter '%s'\n",optarg);
+                               }
                                break;
                        case 'D':
                                optarg = argv[argn][2]