patch 8.2.1099: Vim9: cannot use line break in :cexpr argument Commit: https://github.com/vim/vim/commit/37c837119579ff70b005a4e54c2e26ca42b74022 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 30 21:18:36 2020 +0200 patch 8.2.1099: Vim9: cannot use line break in :cexpr argument Problem: Vim9: cannot use line break in :cexpr argument. Solution: Check for line break.

" 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>)