patch 8.2.0829: filter() may give misleading error message Commit: https://github.com/vim/vim/commit/fcb0b61d15f66f0e9116a6bc56d9d8105bb913cf Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 26 20:22:01 2020 +0200 patch 8.2.0829: filter() may give misleading error message Problem: filter() may give misleading error message. Solution: Also mention Blob as an allowed argument.

/* bufwrite.c */
int buf_write(buf_T *buf, char_u *fname, char_u *sfname, linenr_T start, linenr_T end, exarg_T *eap, int append, int forceit, int reset_changed, int filtering);
/* vim: set ft=c : */