don't pass argc in getopt32, it's superfluous

(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes
   text    data     bss     dec     hex filename
 773469    1058   11092  785619   bfcd3 busybox_old
 772644    1058   11092  784794   bf99a busybox_unstripped

diff --git a/networking/isrv_identd.c b/networking/isrv_identd.c
index 84cf6da..23f6758 100644
--- a/networking/isrv_identd.c
+++ b/networking/isrv_identd.c
@@ -107,7 +107,7 @@
 	unsigned opt;
 	int fd;
 
-	opt = getopt32(argc, argv, "fiwb:", &bind_address);
+	opt = getopt32(argv, "fiwb:", &bind_address);
 	strcpy(bogouser, "nobody");
 	if (argv[optind])
 		strncpy(bogouser, argv[optind], sizeof(bogouser));