Moodle 3.7 send email with password on bulk registration

index.php

//file moodleFolder/admin/tool/uploaduser/index.php
//line ~ 843
//Comment the first line of if and add this another 3 lines to when 
//bulk create user without password generate pass and send e-mail.

if ($user->password === 'to be generated') {
    // set_user_preference('create_password', 1, $user);
    setnew_password_and_mail($user);
    unset_user_preference('create_password', $user);
    set_user_preference('auth_forcepasswordchange', 1, $user);
}