patch 8.1.0363: internal diff isn't used by default as advertised commit https://github.com/vim/vim/commit/c93262b2e3fb043c685bd4014a35a29111dea484 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Sep 10 21:15:40 2018 +0200 patch 8.1.0363: internal diff isn't used by default as advertised Problem: Internal diff isn't used by default as advertised. Solution: Add "internal" to the default value of 'diffopt'. Also add couple of files missing from the distribution.

" For Yiddish capitals should not be checked.  But only change the
" 'spellcapcheck' option when it is not at its default value.
let s:spc = &l:spc
setlocal spc&
if s:spc == &l:spc
  setlocal spc=
else
  let &l:spc = s:spc
endif
unlet s:spc