commit https://github.com/vim/vim/commit/3a938383396d4ab352bbb4d806938302debdae2c Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 7 16:36:40 2016 +0200 patch 7.4.2178 Problem: No test for reading from stdin. Solution: Add a test.

" For Hebrew 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