patch 8.1.0747: map() with a bad expression doesn't give an error commit https://github.com/vim/vim/commit/ce9d50df07402cb8e196537a9c4505845adecabc Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 14 22:22:29 2019 +0100 patch 8.1.0747: map() with a bad expression doesn't give an error Problem: map() with a bad expression doesn't give an error. (Ingo Karkat) Solution: Check for giving an error message. (closes https://github.com/vim/vim/issues/3800)

README_unix.txt for version 8.1 of Vim: Vi IMproved.

This file explains the installation of Vim on Unix systems.
See "README.txt" for general information about Vim.


When you use the source distribution, "make install" is used to install Vim.
See the "INSTALL" file in the "src" directory.

If you use a compiled package, follow the instructions for the package.