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/coreutils/uniq.c b/coreutils/uniq.c
index a7caef9..719bbb5 100644
--- a/coreutils/uniq.c
+++ b/coreutils/uniq.c
@@ -45,7 +45,7 @@
 
 	skip_fields = skip_chars = 0;
 
-	opt = getopt32(argc, argv, "cduf:s:", &s0, &s1);
+	opt = getopt32(argv, "cduf:s:", &s0, &s1);
 	if (opt & OPT_f)
 		skip_fields = xatoul(s0);
 	if (opt & OPT_s)