patch 8.2.1301: Vim9: varargs argument type not parsed properly Commit: https://github.com/vim/vim/commit/ace6132aa8c5fce9d4965e1f2e3a42071815b9de Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 26 18:16:58 2020 +0200 patch 8.2.1301: Vim9: varargs argument type not parsed properly Problem: Vim9: varargs argument type not parsed properly. Solution: Skip over the "...". (issue https://github.com/vim/vim/issues/6507)

" 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>)