updated for version 7.4.399

Problem:    Encryption implementation is messy.  Blowfish encryption has a
            weakness.
Solution:   Refactor the encryption, store the state in an allocated struct
            instead of using a save/restore mechanism.  Introduce the
            "blowfish2" method, which does not have the weakness and encrypts
            the whole undo file. (largely by David Leadbeater)

src/main.c

@@ -846,8 +846,7 @@ vim_main2(int argc UNUSED, char **argv UNUSED)
 #ifdef FEAT_CRYPT
     if (params.ask_for_key)
     {
-	(void)blowfish_self_test();
-	(void)get_crypt_key(TRUE, TRUE);
+	(void)crypt_get_key(TRUE, TRUE);
 	TIME_MSG("getting crypt key");
     }
 #endif