I am trying to change the default text for the password reset email (after somebody has entered their username/email in the password reset field.
I changed the text in wp-login.php (line 235) from
$message .= __('To reset your password, visit the following address:') . "\r\n\r\n";
$message .= __('To reset your password, visit the following URL. Note that AOL and some other email systems disable all links inside emails, so you must manually copy and paste the link below into your web browser address bar. If you do not get a new password within the next 2 minutes, please check your spam or trash folder.') . "\r\n\r\n";
then uploaded the file to the server. But when I test the password reset anew, it still shows the old message. And yes, I did empty the cache after uploading the file.