patch 8.2.1647: Vim9: result of expression with && and || is not a bool Commit: https://github.com/vim/vim/commit/4ed124cc6c0c55385c3b2fed9f9357baf42edbcc Author: Bram Moolenaar <Bram@vim.org> Date: Wed Sep 9 20:03:46 2020 +0200 patch 8.2.1647: Vim9: result of expression with && and || is not a bool Problem: Vim9: result of expression with && and || cannot be assigned to a bool variable. Solution: Add the TTFLAG_BOOL_OK flag and convert the value if needed.

" 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>)