patch 8.2.1092: not checking if saving for undo succeeds Commit: https://github.com/vim/vim/commit/cf070112ca2a6ac9ec5466be1cdc667f6abe8fd0 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 29 23:02:21 2020 +0200 patch 8.2.1092: not checking if saving for undo succeeds Problem: Not checking if saving for undo succeeds. Solution: Bail out if u_savesub() returns FAIL.

README_src.txt for version 8.2 of Vim: Vi IMproved.

The source archive contains the files needed to compile Vim on Unix systems.
It is packed for Unix systems (NL line separator).

For more information, see the README.txt file that comes with the runtime
archive (vim-8.2-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!