patch 8.2.2465: using freed memory in :psearch Commit: https://github.com/vim/vim/commit/92bb83e41ca42d0d00d21753810d92485c808a50 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Feb 3 23:04:46 2021 +0100 patch 8.2.2465: using freed memory in :psearch Problem: Using freed memory in :psearch. (houyunsong) Solution: Check the current window is still valid. Fix flaky test.

" 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>)