commit https://github.com/vim/vim/commit/4a8c2cfc56b9affc36934aa0f20d8cfd2b1511c8 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Dec 19 15:28:18 2015 +0100 patch 7.4.979 Problem: When changing the crypt key the blocks read from disk are not decrypted. Solution: Also call ml_decrypt_data() when mf_old_key is set. (Ken Takata)

/* auto/if_perl.c */
int perl_enabled __ARGS((int verbose));
void perl_end __ARGS((void));
void msg_split __ARGS((char_u *s, int attr));
void perl_win_free __ARGS((win_T *wp));
void perl_buf_free __ARGS((buf_T *bp));
void ex_perl __ARGS((exarg_T *eap));
void ex_perldo __ARGS((exarg_T *eap));