suggestion for pkgdb from ports-mgmt/portupgrade: add more explanation

[Robert Huff]

Michel TALON writes:

>  Finally
>  the file UPDATING should be forcefully removed from the system

	While I support all reasonable efforts to get automation to
always Do The Right Thing(tm), my reaction to this is: absolutely
not.
	Until you can show there are no, and will never again be, edge
cases which break the system, documention for human invervention is
always the right choice.

	Respectfully,


					Robert Huff