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/archival/dpkg.c b/archival/dpkg.c
index b5fc06d..337576c 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -1579,7 +1579,7 @@
 		OPT_unpack = 0x40,
 	};
 
-	opt = getopt32(argc, argv, "CF:ilPru", &str_f);
+	opt = getopt32(argv, "CF:ilPru", &str_f);
 	//if (opt & OPT_configure) ... // -C
 	if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
 		if (strcmp(str_f, "depends"))