patch 8.1.1554: docs and tests for :const can be improved commit https://github.com/vim/vim/commit/1c196e7b1742c1a50ce0d74190721acaad087f81 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 16 15:41:58 2019 +0200 patch 8.1.1554: docs and tests for :const can be improved Problem: Docs and tests for :const can be improved. Solution: Improve documentation, add a few more tests. (Ryuichi Hayashida, closes #4551)

" 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