patch 8.2.3325: digraph test fails when LC_ALL is set to "C" Commit: https://github.com/vim/vim/commit/52eb372a04dfc5d5afef238c1b3c4a8e92020837 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 10 21:39:20 2021 +0200 patch 8.2.3325: digraph test fails when LC_ALL is set to "C" Problem: Digraph test fails when LC_ALL is set to "C". Solution: When restoring 'encoding' set it to "utf-8". (closes https://github.com/vim/vim/issues/8742)

" Settings for test script execution
" Always use "sh", don't use the value of "$SHELL".
set shell=sh

" Only when the +eval feature is present. 
if 1
  " While some tests overwrite $HOME to prevent them from polluting user files,
  " we need to remember the original value so that we can tell external systems
  " where to ask about their own user settings.
  let g:tester_HOME = $HOME
endif

source setup.vim