patch 8.2.0189: cd() with NULL argument crashes Commit: https://github.com/vim/vim/commit/7cc96923c44bbcc541cbd211b6308d87a965f0c3 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jan 31 22:41:38 2020 +0100 patch 8.2.0189: cd() with NULL argument crashes Problem: cd() with NULL argument crashes. Solution: Check for NULL. (Ken Takata, closes https://github.com/vim/vim/issues/5558)

/* session.c */
void ex_loadview(exarg_T *eap);
int write_session_file(char_u *filename);
void ex_mkrc(exarg_T *eap);
var_flavour_T var_flavour(char_u *varname);
int put_eol(FILE *fd);
int put_line(FILE *fd, char *s);
/* vim: set ft=c : */