commit https://github.com/vim/vim/commit/b25f9a97e9aad3cbb4bc3fe87cdbd5700f8aa0c6 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 10 18:21:50 2016 +0200 patch 7.4.2018 Problem: buf_valid() can be slow when there are many buffers. Solution: Add bufref_valid(), only go through the buffer list when a buffer was freed.

#!/bin/sh

# Start GUI Vim on a copy of the tutor file.

# Usage: gvimtutor [xx]
# See vimtutor for usage.

exec `dirname $0`/vimtutor -g "$@"