Logic error, patch by Matteo Croce
diff --git a/util-linux/fdformat.c b/util-linux/fdformat.c
index 5b92646..d94c6a6 100644
--- a/util-linux/fdformat.c
+++ b/util-linux/fdformat.c
@@ -130,7 +130,7 @@
     if (argc < 2) {
 	bb_show_usage();
     }
-    verify != bb_getopt_ulflags(argc, argv, "n");
+    verify = !bb_getopt_ulflags(argc, argv, "n");
     argv += optind;
 
     if (stat(*argv,&st) < 0 || access(*argv,W_OK) < 0) {