patch 8.0.0663: unexpected error message only when 'verbose' is set commit https://github.com/vim/vim/commit/f8be461d0284110b321be748fea206d4169b98bb Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jun 23 20:52:40 2017 +0200 patch 8.0.0663: unexpected error message only when 'verbose' is set Problem: Giving an error message only when 'verbose' set is unexpected. Solution: Give a warning message instead.

" Common preparations for running tests.

" Make sure 'runtimepath' and 'packpath' does not include $HOME.
set rtp=$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after
if has('packages')
  let &packpath = &rtp
endif

" Only when the +eval feature is present. 
if 1
  " Make sure $HOME does not get read or written.
  let $HOME = '/does/not/exist'
endif