patch 8.2.1561: using NULL pointers in fold code Commit: https://github.com/vim/vim/commit/81fcb67fb32a12414512b72e691a1bbbff9f8511 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 1 21:21:24 2020 +0200 patch 8.2.1561: using NULL pointers in fold code Problem: Using NULL pointers in fold code. Solution: Avoid using a NULL pointer. (Dominique Pell?, closes https://github.com/vim/vim/issues/6831, closes #6831)

" Provide 'PrintVer' command to print the interface versions.

func s:print_ver(lang, ...)
  if has(a:lang)
    exec a:lang join(a:000)
  else
    echo 'N/A'
  endif
  echo ''
endfunc

command -nargs=+ PrintVer call <SID>print_ver(<f-args>)