commit https://github.com/vim/vim/commit/b89a25f17e274dc308c584ea69a129ffbb26bc3d Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 1 23:08:39 2016 +0200 patch 7.4.1868 Problem: Setting really_exiting causes memory leaks to be reported. Solution: Add the in_free_all_mem flag.

" 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