commit https://github.com/vim/vim/commit/437905c25d4cedfa16d0f87392e4a000d22362b7 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Apr 26 19:01:05 2016 +0200 patch 7.4.1789 Problem: Cannot use ch_read() in the close callback. Solution: Do not discard the channel if there is readahead. Do not discard readahead if there is a close callback.

#!/bin/sh

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

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

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