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/tail.c b/coreutils/tail.c
index ec21c42..74e1423 100644
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@@ -107,7 +107,7 @@
 	}
 #endif
 
-	opt = getopt32(argc, argv, "fc:n:" USE_FEATURE_FANCY_TAIL("qs:v"),
+	opt = getopt32(argv, "fc:n:" USE_FEATURE_FANCY_TAIL("qs:v"),
 			&str_c, &str_n USE_FEATURE_FANCY_TAIL(,&str_s));
 #define FOLLOW (opt & 0x1)
 #define COUNT_BYTES (opt & 0x2)