update-ifupdown-scripts-zg2.d-symlinks(1) on Linux

The text 441cd3dc56c4, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.

preliminary manpage dump-ifupdown-scripts-zg2.d-symlinks kill-ifupdown-scripts-zg2.d-symlinks check-ifupdown-scripts-zg2.d-symlinks