Fixes #5566: Change ncf-hooks.d directory rights to 2750 to prevent grsec issues
Merge pull request #507 from Kegeruneku/bug_5566/int/5566_do_not_set_group_writable_rights_on_ncf_hook_d_dir

Fixes #5566: Change ncf-hooks.d directory rights to 2750 to prevent grse...