*: BB_BANNER -> bb_banner (it is not a const or #define)!
correct_password: explain in detail why it is ok to use bb_banner
fsck_minix: make it print bb version, not it's own (outdated/irrelevant) one

Marginal size difference:
   text    data     bss     dec     hex filename
 679119    2700   15632  697451   aa46b busybox_old
 679091    2700   15632  697423   aa44f busybox_unstripped


diff --git a/init/init.c b/init/init.c
index 6fcdc03..da79d10 100644
--- a/init/init.c
+++ b/init/init.c
@@ -934,7 +934,7 @@
 	if (argc > 1) setenv("RUNLEVEL", argv[1], 1);
 
 	/* Hello world */
-	message(MAYBE_CONSOLE | L_LOG, "init started: %s", bb_msg_full_version);
+	message(MAYBE_CONSOLE | L_LOG, "init started: %s", bb_banner);
 
 	/* Make sure there is enough memory to do something useful. */
 	if (ENABLE_SWAPONOFF) {