patch 8.2.0806: using "func!" after vim9script gives confusing error Commit: https://github.com/vim/vim/commit/74fae513f8032cfa9e129eedc33454f0bf68668b Author: Bram Moolenaar <Bram@vim.org> Date: Thu May 21 21:50:58 2020 +0200 patch 8.2.0806: using "func!" after vim9script gives confusing error Problem: using "func!" after vim9script gives confusing error. Solution: Give E477. (closes https://github.com/vim/vim/issues/6107)

" 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>)