commit https://github.com/vim/vim/commit/12c4492dd35e0cd83c8816be2ec849b836109882 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 8 13:26:03 2017 +0100 patch 8.0.0151: passing buffer content to system() is clumsy Problem: To pass buffer content to system() and systemlist() one has to first create a string or list. Solution: Allow passing a buffer number. (LemonBoy, closes #1240)

README_src.txt for version 8.0 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-8.0-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!