Fixes #4555: Missing body in update.cf in system techniques (introduced by fix for #4384 - enforce permissions on ncf file copies)
Merge pull request #309 from jooooooon/bug_4555/missing_body_in_update_cf_in_system_techniques_introduced_by_fix_for_4384_enforce_permissions_on_ncf_file_copies

Fixes #4555: Missing body in update.cf in system techniques (introduced ...