patch 8.2.3144: Vim9: no error when using an invalid value for a line number Commit: https://github.com/vim/vim/commit/0f1227f7d5a3e368f61d396c1640088c079fef91 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 11 16:01:58 2021 +0200 patch 8.2.3144: Vim9: no error when using an invalid value for a line number Problem: Vim9: no error when using an invalid value for a line number. Solution: Give an error if the string value is not recognized. (closes #8536)

" Script to check if all the locales used in spell files are available.

grep /sys env LANG/ */main.aap
let not_supported = []
for item in getqflist()
  let lang = substitute(item.text, '.*LANG=\(\S\+\).*', '\1', '')
  try
    exe 'lang ' . lang
  catch /E197/
    call add(not_supported, lang)
  endtry
endfor

if len(not_supported) > 0
  echo "Unsupported languages:"
  for l in not_supported
    echo l
  endfor
else
  echo "Everything appears to be OK"
endif