please check your ports, pre-install vs pre-su-install

[Luigi Rizzo]

just noticed (by running 'make install' as non-root
for some ports) that there are many ports in the tree
use 'pre-install' to perform actions (such as creating
directories etc) that actually require root permissions,
and for which i recently learned there is a pre-su-install
target.

It would be great if the maintainers could check their
ports and fix them if needed.
before the port freeze on the 20th, that is :)

thanks
luigi