style fix

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 841b3b8..d8ab2a4 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -762,7 +762,7 @@
 //usage:#define busybox_trivial_usage NOUSAGE_STR
 //usage:#define busybox_full_usage ""
 //applet:IF_BUSYBOX(IF_FEATURE_SH_STANDALONE(IF_FEATURE_TAB_COMPLETION(APPLET(busybox, BB_DIR_BIN, BB_SUID_MAYBE))))
-int busybox_main(int argc, char *argv[]) MAIN_EXTERNALLY_VISIBLE;
+int busybox_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 #  else
 #   define busybox_main(argc,argv) busybox_main(argv)
 static