patch 8.2.0878: no reduce() function Commit: https://github.com/vim/vim/commit/85629985b71035608a37ba3bde86968481490d46 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 1 18:39:20 2020 +0200 patch 8.2.0878: no reduce() function Problem: No reduce() function. Solution: Add a reduce() function. (closes https://github.com/vim/vim/issues/5481)

" 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>)