patch 8.2.2791: Vim9: memory leak when using =expr in :substitute Commit: https://github.com/vim/vim/commit/5c787fb7928c4cc1e7d6eec0be1bbd63d903cc8d Author: Bram Moolenaar <Bram@vim.org> Date: Tue Apr 20 21:49:35 2021 +0200 patch 8.2.2791: Vim9: memory leak when using \=expr in :substitute Problem: Vim9: memory leak when using \=expr in :substitute. Solution: Do not allocate a new instruction list.

" 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>)