patch 8.2.0625: Vim9: confusing error when calling unknown function Commit: https://github.com/vim/vim/commit/1df8b3fb04ce8732a0be680273c95eb4e9f5e85d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 23 18:13:23 2020 +0200 patch 8.2.0625: Vim9: confusing error when calling unknown function Problem: Vim9: confusing error when calling unknown function. Solution: Give error while compiling.

" 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>)