Note update of ruby200 packages to 2.0.0p643.

lang/ruby200-base 2.0.0p643
databases/ruby-gdbm 2.0.0p643
devel/ruby-curses 2.0.0p643nb1
devel/ruby-fiddle 2.0.0p643
devel/ruby-readline 2.0.0p643nb1
x11/ruby-tk 2.0.0p643nb4
lang/ruby200 2.0.0p643

We can not reset PKG_REVISION for now.

(taca)